/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:57:09,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:57:09,835 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 03:57:09,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:57:09,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:57:09,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:57:09,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:57:09,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:57:09,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:57:09,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:57:09,874 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:57:09,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:57:09,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:57:09,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:57:09,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:57:09,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:57:09,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:57:09,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:57:09,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:57:09,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:57:09,877 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:57:09,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:57:09,878 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:57:09,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:57:09,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:57:09,879 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:57:09,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:57:09,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:57:09,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:57:09,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:57:09,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:57:09,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:57:09,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:57:09,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:57:09,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:57:09,882 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:57:10,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:57:10,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:57:10,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:57:10,237 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:57:10,239 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:57:10,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-27 03:57:11,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:57:11,592 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:57:11,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-27 03:57:11,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec5699d7/b9584074fc5c43b29e494f5ecf82b643/FLAG80aa9764f [2023-08-27 03:57:11,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec5699d7/b9584074fc5c43b29e494f5ecf82b643 [2023-08-27 03:57:11,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:57:11,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:57:11,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:57:11,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:57:11,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:57:11,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:57:11" (1/1) ... [2023-08-27 03:57:11,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d50c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:11, skipping insertion in model container [2023-08-27 03:57:11,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:57:11" (1/1) ... [2023-08-27 03:57:11,696 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:57:12,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:57:12,042 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:57:12,071 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:57:12,072 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:57:12,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:57:12,141 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:57:12,141 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:57:12,147 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:57:12,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12 WrapperNode [2023-08-27 03:57:12,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:57:12,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:57:12,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:57:12,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:57:12,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,209 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-08-27 03:57:12,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:57:12,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:57:12,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:57:12,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:57:12,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:57:12,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:57:12,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:57:12,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:57:12,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (1/1) ... [2023-08-27 03:57:12,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:57:12,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:57:12,274 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 03:57:12,283 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 03:57:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:57:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:57:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:57:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 03:57:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 03:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 03:57:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 03:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 03:57:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 03:57:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:57:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:57:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:57:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:57:12,315 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 03:57:12,430 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:57:12,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:57:12,592 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:57:12,616 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:57:12,616 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:57:12,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:57:12 BoogieIcfgContainer [2023-08-27 03:57:12,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:57:12,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:57:12,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:57:12,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:57:12,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:57:11" (1/3) ... [2023-08-27 03:57:12,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@807fdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:57:12, skipping insertion in model container [2023-08-27 03:57:12,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:57:12" (2/3) ... [2023-08-27 03:57:12,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@807fdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:57:12, skipping insertion in model container [2023-08-27 03:57:12,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:57:12" (3/3) ... [2023-08-27 03:57:12,627 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2023-08-27 03:57:12,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:57:12,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 03:57:12,639 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:57:12,713 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:57:12,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 95 transitions, 205 flow [2023-08-27 03:57:12,774 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-27 03:57:12,775 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:57:12,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-27 03:57:12,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 95 transitions, 205 flow [2023-08-27 03:57:12,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 92 transitions, 193 flow [2023-08-27 03:57:12,787 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:57:12,798 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-27 03:57:12,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 92 transitions, 193 flow [2023-08-27 03:57:12,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 92 transitions, 193 flow [2023-08-27 03:57:12,842 INFO L124 PetriNetUnfolderBase]: 3/92 cut-off events. [2023-08-27 03:57:12,842 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:57:12,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-27 03:57:12,847 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-27 03:57:14,974 INFO L134 LiptonReduction]: Checked pairs total: 5938 [2023-08-27 03:57:14,975 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-27 03:57:14,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:57:15,001 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;@58035933, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:57:15,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 03:57:15,006 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:57:15,006 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 03:57:15,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:57:15,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:15,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:57:15,008 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 03:57:15,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash 335334441, now seen corresponding path program 1 times [2023-08-27 03:57:15,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:15,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764921012] [2023-08-27 03:57:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:15,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:15,251 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 03:57:15,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:15,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764921012] [2023-08-27 03:57:15,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764921012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:15,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:15,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:57:15,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844126351] [2023-08-27 03:57:15,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:15,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:57:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:15,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:57:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:57:15,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-27 03:57:15,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 03:57:15,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:15,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-27 03:57:15,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:15,460 INFO L124 PetriNetUnfolderBase]: 532/887 cut-off events. [2023-08-27 03:57:15,460 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 03:57:15,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 887 events. 532/887 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 4709 event pairs, 306 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 1793. Up to 843 conditions per place. [2023-08-27 03:57:15,469 INFO L140 encePairwiseOnDemand]: 164/176 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-27 03:57:15,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 149 flow [2023-08-27 03:57:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:57:15,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:57:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-27 03:57:15,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2023-08-27 03:57:15,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-27 03:57:15,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-27 03:57:15,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:15,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-27 03:57:15,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 03:57:15,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 03:57:15,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 03:57:15,493 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 272 transitions. [2023-08-27 03:57:15,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 149 flow [2023-08-27 03:57:15,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 03:57:15,497 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 94 flow [2023-08-27 03:57:15,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-27 03:57:15,502 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-27 03:57:15,502 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 94 flow [2023-08-27 03:57:15,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 03:57:15,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:15,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:15,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:57:15,503 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 03:57:15,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 632723755, now seen corresponding path program 1 times [2023-08-27 03:57:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:15,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122598176] [2023-08-27 03:57:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:15,576 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 03:57:15,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:15,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122598176] [2023-08-27 03:57:15,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122598176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:15,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:15,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:57:15,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899177568] [2023-08-27 03:57:15,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:57:15,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:15,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:57:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:57:15,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-27 03:57:15,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 03:57:15,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:15,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-27 03:57:15,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:15,669 INFO L124 PetriNetUnfolderBase]: 327/558 cut-off events. [2023-08-27 03:57:15,670 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-08-27 03:57:15,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 558 events. 327/558 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2576 event pairs, 150 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 1430. Up to 513 conditions per place. [2023-08-27 03:57:15,674 INFO L140 encePairwiseOnDemand]: 169/176 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-27 03:57:15,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 158 flow [2023-08-27 03:57:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:57:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:57:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-27 03:57:15,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48295454545454547 [2023-08-27 03:57:15,678 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-27 03:57:15,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-27 03:57:15,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:15,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-27 03:57:15,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 03:57:15,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 03:57:15,682 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 03:57:15,682 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 94 flow. Second operand 4 states and 340 transitions. [2023-08-27 03:57:15,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 158 flow [2023-08-27 03:57:15,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 03:57:15,684 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 86 flow [2023-08-27 03:57:15,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-08-27 03:57:15,684 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-27 03:57:15,685 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 86 flow [2023-08-27 03:57:15,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 03:57:15,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:15,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:15,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:57:15,686 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 03:57:15,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash 632561006, now seen corresponding path program 1 times [2023-08-27 03:57:15,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977842375] [2023-08-27 03:57:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:15,755 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 03:57:15,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:15,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977842375] [2023-08-27 03:57:15,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977842375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:57:15,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360744320] [2023-08-27 03:57:15,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:15,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:57:15,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:15,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:57:15,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:57:15,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-27 03:57:15,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 03:57:15,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:15,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-27 03:57:15,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:15,832 INFO L124 PetriNetUnfolderBase]: 92/196 cut-off events. [2023-08-27 03:57:15,833 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-08-27 03:57:15,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 196 events. 92/196 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 687 event pairs, 31 based on Foata normal form. 12/180 useless extension candidates. Maximal degree in co-relation 503. Up to 104 conditions per place. [2023-08-27 03:57:15,835 INFO L140 encePairwiseOnDemand]: 168/176 looper letters, 30 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2023-08-27 03:57:15,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 202 flow [2023-08-27 03:57:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:57:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:57:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-08-27 03:57:15,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49573863636363635 [2023-08-27 03:57:15,836 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-08-27 03:57:15,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-08-27 03:57:15,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:15,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-08-27 03:57:15,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 03:57:15,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 03:57:15,841 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 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 03:57:15,841 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 86 flow. Second operand 4 states and 349 transitions. [2023-08-27 03:57:15,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 202 flow [2023-08-27 03:57:15,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:57:15,843 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 127 flow [2023-08-27 03:57:15,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-27 03:57:15,845 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-27 03:57:15,845 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 127 flow [2023-08-27 03:57:15,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 03:57:15,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:15,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:15,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:57:15,849 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 03:57:15,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1309472272, now seen corresponding path program 1 times [2023-08-27 03:57:15,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:15,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435405600] [2023-08-27 03:57:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:15,939 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 03:57:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435405600] [2023-08-27 03:57:15,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435405600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:15,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:15,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:57:15,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065007716] [2023-08-27 03:57:15,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:15,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:57:15,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:57:15,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:57:15,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-27 03:57:15,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 03:57:15,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:15,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-27 03:57:15,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:16,004 INFO L124 PetriNetUnfolderBase]: 56/121 cut-off events. [2023-08-27 03:57:16,004 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-08-27 03:57:16,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 121 events. 56/121 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 357 event pairs, 15 based on Foata normal form. 6/123 useless extension candidates. Maximal degree in co-relation 375. Up to 48 conditions per place. [2023-08-27 03:57:16,006 INFO L140 encePairwiseOnDemand]: 168/176 looper letters, 23 selfloop transitions, 10 changer transitions 1/37 dead transitions. [2023-08-27 03:57:16,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 207 flow [2023-08-27 03:57:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:57:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:57:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2023-08-27 03:57:16,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48068181818181815 [2023-08-27 03:57:16,008 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2023-08-27 03:57:16,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2023-08-27 03:57:16,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:16,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2023-08-27 03:57:16,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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 03:57:16,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,012 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 127 flow. Second operand 5 states and 423 transitions. [2023-08-27 03:57:16,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 207 flow [2023-08-27 03:57:16,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 193 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-27 03:57:16,015 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 121 flow [2023-08-27 03:57:16,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2023-08-27 03:57:16,017 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-27 03:57:16,017 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 121 flow [2023-08-27 03:57:16,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 03:57:16,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:16,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:16,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 03:57:16,018 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 03:57:16,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1587709000, now seen corresponding path program 1 times [2023-08-27 03:57:16,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:16,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677286244] [2023-08-27 03:57:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:16,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:16,199 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 03:57:16,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:16,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677286244] [2023-08-27 03:57:16,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677286244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:16,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:16,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:57:16,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548451818] [2023-08-27 03:57:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:57:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:57:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:57:16,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 176 [2023-08-27 03:57:16,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 03:57:16,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:16,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 176 [2023-08-27 03:57:16,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:16,304 INFO L124 PetriNetUnfolderBase]: 153/326 cut-off events. [2023-08-27 03:57:16,304 INFO L125 PetriNetUnfolderBase]: For 504/504 co-relation queries the response was YES. [2023-08-27 03:57:16,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 326 events. 153/326 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1524 event pairs, 47 based on Foata normal form. 1/327 useless extension candidates. Maximal degree in co-relation 1065. Up to 142 conditions per place. [2023-08-27 03:57:16,307 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 38 selfloop transitions, 2 changer transitions 16/57 dead transitions. [2023-08-27 03:57:16,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 429 flow [2023-08-27 03:57:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:57:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:57:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-08-27 03:57:16,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44772727272727275 [2023-08-27 03:57:16,309 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:16,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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 03:57:16,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,313 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 121 flow. Second operand 5 states and 394 transitions. [2023-08-27 03:57:16,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 429 flow [2023-08-27 03:57:16,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 57 transitions, 355 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-08-27 03:57:16,319 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 111 flow [2023-08-27 03:57:16,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2023-08-27 03:57:16,322 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-27 03:57:16,322 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 111 flow [2023-08-27 03:57:16,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 03:57:16,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:16,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:16,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 03:57:16,323 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 03:57:16,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1790863514, now seen corresponding path program 2 times [2023-08-27 03:57:16,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093246053] [2023-08-27 03:57:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:16,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:16,497 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 03:57:16,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:16,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093246053] [2023-08-27 03:57:16,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093246053] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:16,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:16,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:57:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534572123] [2023-08-27 03:57:16,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:16,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:57:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:16,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:57:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:57:16,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 176 [2023-08-27 03:57:16,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:57:16,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:16,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 176 [2023-08-27 03:57:16,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:16,574 INFO L124 PetriNetUnfolderBase]: 131/301 cut-off events. [2023-08-27 03:57:16,574 INFO L125 PetriNetUnfolderBase]: For 316/316 co-relation queries the response was YES. [2023-08-27 03:57:16,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 301 events. 131/301 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1429 event pairs, 38 based on Foata normal form. 2/297 useless extension candidates. Maximal degree in co-relation 995. Up to 128 conditions per place. [2023-08-27 03:57:16,577 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 29 selfloop transitions, 3 changer transitions 11/45 dead transitions. [2023-08-27 03:57:16,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 304 flow [2023-08-27 03:57:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:57:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:57:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-08-27 03:57:16,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44772727272727275 [2023-08-27 03:57:16,579 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:16,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-08-27 03:57:16,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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 03:57:16,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 03:57:16,583 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 111 flow. Second operand 5 states and 394 transitions. [2023-08-27 03:57:16,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 304 flow [2023-08-27 03:57:16,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 294 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-27 03:57:16,587 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 117 flow [2023-08-27 03:57:16,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-27 03:57:16,589 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-27 03:57:16,590 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 117 flow [2023-08-27 03:57:16,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:57:16,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:57:16,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:57:16,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 03:57:16,591 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 03:57:16,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:57:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2129270098, now seen corresponding path program 3 times [2023-08-27 03:57:16,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:57:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116505236] [2023-08-27 03:57:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:57:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:57:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:57:16,717 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 03:57:16,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:57:16,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116505236] [2023-08-27 03:57:16,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116505236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:57:16,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:57:16,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:57:16,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242561583] [2023-08-27 03:57:16,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:57:16,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:57:16,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:57:16,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:57:16,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:57:16,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 176 [2023-08-27 03:57:16,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 117 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 03:57:16,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:57:16,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 176 [2023-08-27 03:57:16,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:57:16,824 INFO L124 PetriNetUnfolderBase]: 107/234 cut-off events. [2023-08-27 03:57:16,824 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2023-08-27 03:57:16,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 234 events. 107/234 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 906 event pairs, 34 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 822. Up to 120 conditions per place. [2023-08-27 03:57:16,825 INFO L140 encePairwiseOnDemand]: 168/176 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-08-27 03:57:16,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 349 flow [2023-08-27 03:57:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:57:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:57:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 511 transitions. [2023-08-27 03:57:16,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4147727272727273 [2023-08-27 03:57:16,827 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 511 transitions. [2023-08-27 03:57:16,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 511 transitions. [2023-08-27 03:57:16,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:57:16,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 511 transitions. [2023-08-27 03:57:16,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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 03:57:16,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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 03:57:16,831 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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 03:57:16,831 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 117 flow. Second operand 7 states and 511 transitions. [2023-08-27 03:57:16,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 349 flow [2023-08-27 03:57:16,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 337 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-27 03:57:16,833 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-27 03:57:16,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-27 03:57:16,834 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-27 03:57:16,834 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-27 03:57:16,834 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 03:57:16,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 03:57:16,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 03:57:16,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 03:57:16,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 03:57:16,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 03:57:16,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 03:57:16,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 03:57:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 03:57:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 03:57:16,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 03:57:16,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:57:16,839 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-27 03:57:16,843 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:57:16,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:57:16,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:57:16 BasicIcfg [2023-08-27 03:57:16,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:57:16,847 INFO L158 Benchmark]: Toolchain (without parser) took 5202.58ms. Allocated memory was 331.4MB in the beginning and 476.1MB in the end (delta: 144.7MB). Free memory was 306.6MB in the beginning and 267.9MB in the end (delta: 38.7MB). Peak memory consumption was 184.8MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,847 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 331.4MB. Free memory is still 308.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:57:16,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.33ms. Allocated memory is still 331.4MB. Free memory was 306.3MB in the beginning and 286.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.95ms. Allocated memory is still 331.4MB. Free memory was 286.1MB in the beginning and 283.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,848 INFO L158 Benchmark]: Boogie Preprocessor took 30.84ms. Allocated memory is still 331.4MB. Free memory was 283.9MB in the beginning and 282.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,848 INFO L158 Benchmark]: RCFGBuilder took 377.99ms. Allocated memory is still 331.4MB. Free memory was 282.5MB in the beginning and 266.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,848 INFO L158 Benchmark]: TraceAbstraction took 4224.74ms. Allocated memory was 331.4MB in the beginning and 476.1MB in the end (delta: 144.7MB). Free memory was 266.1MB in the beginning and 267.9MB in the end (delta: -1.8MB). Peak memory consumption was 144.9MB. Max. memory is 16.0GB. [2023-08-27 03:57:16,849 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 331.4MB. Free memory is still 308.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 502.33ms. Allocated memory is still 331.4MB. Free memory was 306.3MB in the beginning and 286.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.95ms. Allocated memory is still 331.4MB. Free memory was 286.1MB in the beginning and 283.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.84ms. Allocated memory is still 331.4MB. Free memory was 283.9MB in the beginning and 282.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 377.99ms. Allocated memory is still 331.4MB. Free memory was 282.5MB in the beginning and 266.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4224.74ms. Allocated memory was 331.4MB in the beginning and 476.1MB in the end (delta: 144.7MB). Free memory was 266.1MB in the beginning and 267.9MB in the end (delta: -1.8MB). Peak memory consumption was 144.9MB. 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, 99 PlacesBefore, 35 PlacesAfterwards, 92 TransitionsBefore, 26 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 81 TotalNumberOfCompositions, 5938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3221, independent: 3065, independent conditional: 0, independent unconditional: 3065, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1247, independent: 1203, independent conditional: 0, independent unconditional: 1203, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3221, independent: 1862, independent conditional: 0, independent unconditional: 1862, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 1247, unknown conditional: 0, unknown unconditional: 1247] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: 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, 123 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: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 6 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, 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, 0.7s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 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 03:57:16,865 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...