/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:11:09,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:11:10,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 10:11:10,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:11:10,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:11:10,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:11:10,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:11:10,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:11:10,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:11:10,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:11:10,084 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:11:10,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:11:10,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:11:10,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:11:10,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:11:10,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:11:10,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:11:10,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:11:10,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:11:10,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:11:10,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:11:10,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:11:10,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:11:10,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:11:10,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:11:10,088 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:11:10,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:11:10,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:11:10,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:11:10,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:11:10,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:11:10,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:11:10,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:11:10,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:11:10,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:11:10,091 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:11:10,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:11:10,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:11:10,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:11:10,451 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:11:10,453 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:11:10,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-08-27 10:11:11,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:11:11,897 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:11:11,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-08-27 10:11:11,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9195594d/f62adc876bc3456a8fcd2d4c5a0c9130/FLAG864e45a75 [2023-08-27 10:11:11,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9195594d/f62adc876bc3456a8fcd2d4c5a0c9130 [2023-08-27 10:11:11,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:11:11,940 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:11:11,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:11:11,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:11:11,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:11:11,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:11:11" (1/1) ... [2023-08-27 10:11:11,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71109fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:11, skipping insertion in model container [2023-08-27 10:11:11,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:11:11" (1/1) ... [2023-08-27 10:11:11,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:11:12,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:11:12,311 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:11:12,339 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:11:12,341 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:11:12,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:11:12,432 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:11:12,432 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:11:12,438 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:11:12,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12 WrapperNode [2023-08-27 10:11:12,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:11:12,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:11:12,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:11:12,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:11:12,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,515 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 152 [2023-08-27 10:11:12,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:11:12,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:11:12,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:11:12,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:11:12,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:11:12,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:11:12,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:11:12,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:11:12,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (1/1) ... [2023-08-27 10:11:12,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:11:12,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:11:12,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 10:11:12,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 10:11:12,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:11:12,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:11:12,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:11:12,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:11:12,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:11:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:11:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 10:11:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:11:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:11:12,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:11:12,645 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 10:11:12,803 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:11:12,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:11:13,100 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:11:13,242 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:11:13,242 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:11:13,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:11:13 BoogieIcfgContainer [2023-08-27 10:11:13,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:11:13,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:11:13,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:11:13,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:11:13,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:11:11" (1/3) ... [2023-08-27 10:11:13,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb58838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:11:13, skipping insertion in model container [2023-08-27 10:11:13,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:11:12" (2/3) ... [2023-08-27 10:11:13,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb58838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:11:13, skipping insertion in model container [2023-08-27 10:11:13,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:11:13" (3/3) ... [2023-08-27 10:11:13,251 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-08-27 10:11:13,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:11:13,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-27 10:11:13,264 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:11:13,313 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:11:13,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 116 transitions, 247 flow [2023-08-27 10:11:13,408 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2023-08-27 10:11:13,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:11:13,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 3/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-27 10:11:13,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 116 transitions, 247 flow [2023-08-27 10:11:13,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 113 transitions, 235 flow [2023-08-27 10:11:13,420 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:11:13,427 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 113 transitions, 235 flow [2023-08-27 10:11:13,429 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 113 transitions, 235 flow [2023-08-27 10:11:13,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 113 transitions, 235 flow [2023-08-27 10:11:13,454 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2023-08-27 10:11:13,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:11:13,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 3/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-27 10:11:13,457 INFO L119 LiptonReduction]: Number of co-enabled transitions 2616 [2023-08-27 10:11:17,148 INFO L134 LiptonReduction]: Checked pairs total: 9281 [2023-08-27 10:11:17,148 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-08-27 10:11:17,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:11:17,165 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;@74fe76e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:11:17,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-27 10:11:17,168 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:11:17,168 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 10:11:17,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:11:17,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:17,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:11:17,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:17,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 498975470, now seen corresponding path program 1 times [2023-08-27 10:11:17,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:17,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288933141] [2023-08-27 10:11:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:17,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:17,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288933141] [2023-08-27 10:11:17,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288933141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:17,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:17,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:11:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153637457] [2023-08-27 10:11:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:17,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:11:17,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:11:17,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:11:17,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2023-08-27 10:11:17,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:17,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:17,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2023-08-27 10:11:17,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:17,811 INFO L124 PetriNetUnfolderBase]: 1578/2427 cut-off events. [2023-08-27 10:11:17,811 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 10:11:17,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 2427 events. 1578/2427 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 12645 event pairs, 448 based on Foata normal form. 114/1716 useless extension candidates. Maximal degree in co-relation 4876. Up to 1916 conditions per place. [2023-08-27 10:11:17,829 INFO L140 encePairwiseOnDemand]: 205/216 looper letters, 42 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2023-08-27 10:11:17,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 205 flow [2023-08-27 10:11:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:11:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:11:17,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-08-27 10:11:17,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5092592592592593 [2023-08-27 10:11:17,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-08-27 10:11:17,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-08-27 10:11:17,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:17,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-08-27 10:11:17,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:17,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:17,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:17,853 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 3 states and 330 transitions. [2023-08-27 10:11:17,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 205 flow [2023-08-27 10:11:17,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:11:17,857 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 102 flow [2023-08-27 10:11:17,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-27 10:11:17,861 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-27 10:11:17,861 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 102 flow [2023-08-27 10:11:17,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:17,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:17,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:17,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:11:17,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:17,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1463679836, now seen corresponding path program 1 times [2023-08-27 10:11:17,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:17,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233105805] [2023-08-27 10:11:17,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:17,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:18,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233105805] [2023-08-27 10:11:18,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233105805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:18,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:18,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:11:18,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121244897] [2023-08-27 10:11:18,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:18,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:11:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:18,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:11:18,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:11:18,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 216 [2023-08-27 10:11:18,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:18,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 216 [2023-08-27 10:11:18,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:18,317 INFO L124 PetriNetUnfolderBase]: 1105/1898 cut-off events. [2023-08-27 10:11:18,318 INFO L125 PetriNetUnfolderBase]: For 179/211 co-relation queries the response was YES. [2023-08-27 10:11:18,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 1898 events. 1105/1898 cut-off events. For 179/211 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 11312 event pairs, 223 based on Foata normal form. 0/1501 useless extension candidates. Maximal degree in co-relation 4480. Up to 1315 conditions per place. [2023-08-27 10:11:18,332 INFO L140 encePairwiseOnDemand]: 213/216 looper letters, 39 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-08-27 10:11:18,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 226 flow [2023-08-27 10:11:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:11:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:11:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2023-08-27 10:11:18,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5015432098765432 [2023-08-27 10:11:18,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2023-08-27 10:11:18,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2023-08-27 10:11:18,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:18,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2023-08-27 10:11:18,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,345 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 102 flow. Second operand 3 states and 325 transitions. [2023-08-27 10:11:18,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 226 flow [2023-08-27 10:11:18,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:11:18,348 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 100 flow [2023-08-27 10:11:18,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-08-27 10:11:18,350 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-27 10:11:18,350 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 100 flow [2023-08-27 10:11:18,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:18,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:18,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:11:18,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:18,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1976848659, now seen corresponding path program 1 times [2023-08-27 10:11:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:18,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844299549] [2023-08-27 10:11:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:18,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844299549] [2023-08-27 10:11:18,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844299549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:18,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:18,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:11:18,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459871167] [2023-08-27 10:11:18,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:18,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:18,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:18,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:18,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 216 [2023-08-27 10:11:18,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:18,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:18,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 216 [2023-08-27 10:11:18,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:19,650 INFO L124 PetriNetUnfolderBase]: 3509/5504 cut-off events. [2023-08-27 10:11:19,651 INFO L125 PetriNetUnfolderBase]: For 856/977 co-relation queries the response was YES. [2023-08-27 10:11:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12990 conditions, 5504 events. 3509/5504 cut-off events. For 856/977 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 32274 event pairs, 421 based on Foata normal form. 8/4501 useless extension candidates. Maximal degree in co-relation 12978. Up to 2618 conditions per place. [2023-08-27 10:11:19,689 INFO L140 encePairwiseOnDemand]: 205/216 looper letters, 87 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2023-08-27 10:11:19,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 112 transitions, 552 flow [2023-08-27 10:11:19,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:19,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 660 transitions. [2023-08-27 10:11:19,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2023-08-27 10:11:19,692 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 660 transitions. [2023-08-27 10:11:19,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 660 transitions. [2023-08-27 10:11:19,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:19,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 660 transitions. [2023-08-27 10:11:19,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.28571428571429) internal successors, (660), 7 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:19,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:19,697 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:19,697 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 100 flow. Second operand 7 states and 660 transitions. [2023-08-27 10:11:19,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 112 transitions, 552 flow [2023-08-27 10:11:19,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 112 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:19,700 INFO L231 Difference]: Finished difference. Result has 49 places, 53 transitions, 256 flow [2023-08-27 10:11:19,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=256, PETRI_PLACES=49, PETRI_TRANSITIONS=53} [2023-08-27 10:11:19,701 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2023-08-27 10:11:19,701 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 53 transitions, 256 flow [2023-08-27 10:11:19,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:19,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:19,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:19,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:11:19,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:19,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 673476002, now seen corresponding path program 1 times [2023-08-27 10:11:19,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:19,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031740495] [2023-08-27 10:11:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:19,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:19,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031740495] [2023-08-27 10:11:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031740495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:19,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:11:19,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875373313] [2023-08-27 10:11:19,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:19,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:11:19,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:19,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:11:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:11:19,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2023-08-27 10:11:19,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:19,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:19,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2023-08-27 10:11:19,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:20,179 INFO L124 PetriNetUnfolderBase]: 2332/3606 cut-off events. [2023-08-27 10:11:20,179 INFO L125 PetriNetUnfolderBase]: For 4657/4849 co-relation queries the response was YES. [2023-08-27 10:11:20,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11948 conditions, 3606 events. 2332/3606 cut-off events. For 4657/4849 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 20575 event pairs, 473 based on Foata normal form. 27/3026 useless extension candidates. Maximal degree in co-relation 11931. Up to 2663 conditions per place. [2023-08-27 10:11:20,206 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 69 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2023-08-27 10:11:20,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 81 transitions, 544 flow [2023-08-27 10:11:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:11:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:11:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2023-08-27 10:11:20,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47685185185185186 [2023-08-27 10:11:20,208 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 412 transitions. [2023-08-27 10:11:20,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 412 transitions. [2023-08-27 10:11:20,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:20,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 412 transitions. [2023-08-27 10:11:20,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,211 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,211 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 256 flow. Second operand 4 states and 412 transitions. [2023-08-27 10:11:20,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 81 transitions, 544 flow [2023-08-27 10:11:20,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 10:11:20,222 INFO L231 Difference]: Finished difference. Result has 49 places, 50 transitions, 252 flow [2023-08-27 10:11:20,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=49, PETRI_TRANSITIONS=50} [2023-08-27 10:11:20,223 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2023-08-27 10:11:20,223 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 50 transitions, 252 flow [2023-08-27 10:11:20,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:20,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:20,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:11:20,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:20,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash -199879537, now seen corresponding path program 1 times [2023-08-27 10:11:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:20,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500281451] [2023-08-27 10:11:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:20,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500281451] [2023-08-27 10:11:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500281451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:20,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:20,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:11:20,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038433446] [2023-08-27 10:11:20,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:11:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:20,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:11:20,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:11:20,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2023-08-27 10:11:20,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 50 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:20,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2023-08-27 10:11:20,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:20,632 INFO L124 PetriNetUnfolderBase]: 1740/2690 cut-off events. [2023-08-27 10:11:20,633 INFO L125 PetriNetUnfolderBase]: For 4270/4428 co-relation queries the response was YES. [2023-08-27 10:11:20,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9317 conditions, 2690 events. 1740/2690 cut-off events. For 4270/4428 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14627 event pairs, 353 based on Foata normal form. 25/2527 useless extension candidates. Maximal degree in co-relation 9298. Up to 1111 conditions per place. [2023-08-27 10:11:20,659 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 95 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2023-08-27 10:11:20,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 110 transitions, 754 flow [2023-08-27 10:11:20,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:11:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:11:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2023-08-27 10:11:20,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49537037037037035 [2023-08-27 10:11:20,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 428 transitions. [2023-08-27 10:11:20,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 428 transitions. [2023-08-27 10:11:20,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:20,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 428 transitions. [2023-08-27 10:11:20,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,675 INFO L175 Difference]: Start difference. First operand has 49 places, 50 transitions, 252 flow. Second operand 4 states and 428 transitions. [2023-08-27 10:11:20,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 110 transitions, 754 flow [2023-08-27 10:11:20,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 110 transitions, 749 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:20,685 INFO L231 Difference]: Finished difference. Result has 51 places, 53 transitions, 291 flow [2023-08-27 10:11:20,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=51, PETRI_TRANSITIONS=53} [2023-08-27 10:11:20,687 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2023-08-27 10:11:20,688 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 53 transitions, 291 flow [2023-08-27 10:11:20,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:20,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:20,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:20,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:11:20,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:20,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash -89517730, now seen corresponding path program 1 times [2023-08-27 10:11:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:20,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33591592] [2023-08-27 10:11:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:21,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:21,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33591592] [2023-08-27 10:11:21,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33591592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:21,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:21,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:11:21,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536478724] [2023-08-27 10:11:21,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:21,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:21,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:21,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:21,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:21,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 216 [2023-08-27 10:11:21,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 53 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:21,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:21,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 216 [2023-08-27 10:11:21,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:21,681 INFO L124 PetriNetUnfolderBase]: 2623/4031 cut-off events. [2023-08-27 10:11:21,682 INFO L125 PetriNetUnfolderBase]: For 8051/8275 co-relation queries the response was YES. [2023-08-27 10:11:21,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15167 conditions, 4031 events. 2623/4031 cut-off events. For 8051/8275 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 21932 event pairs, 503 based on Foata normal form. 139/3913 useless extension candidates. Maximal degree in co-relation 15147. Up to 2304 conditions per place. [2023-08-27 10:11:21,714 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 89 selfloop transitions, 14 changer transitions 3/113 dead transitions. [2023-08-27 10:11:21,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 113 transitions, 822 flow [2023-08-27 10:11:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:11:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:11:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 496 transitions. [2023-08-27 10:11:21,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45925925925925926 [2023-08-27 10:11:21,716 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 496 transitions. [2023-08-27 10:11:21,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 496 transitions. [2023-08-27 10:11:21,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:21,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 496 transitions. [2023-08-27 10:11:21,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:21,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:21,720 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:21,720 INFO L175 Difference]: Start difference. First operand has 51 places, 53 transitions, 291 flow. Second operand 5 states and 496 transitions. [2023-08-27 10:11:21,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 113 transitions, 822 flow [2023-08-27 10:11:21,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 113 transitions, 794 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:21,740 INFO L231 Difference]: Finished difference. Result has 57 places, 66 transitions, 430 flow [2023-08-27 10:11:21,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=430, PETRI_PLACES=57, PETRI_TRANSITIONS=66} [2023-08-27 10:11:21,743 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2023-08-27 10:11:21,745 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 66 transitions, 430 flow [2023-08-27 10:11:21,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:21,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:21,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:21,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 10:11:21,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:21,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1519830292, now seen corresponding path program 1 times [2023-08-27 10:11:21,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:21,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123915057] [2023-08-27 10:11:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:21,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:22,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:22,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123915057] [2023-08-27 10:11:22,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123915057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:22,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:22,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:11:22,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881113961] [2023-08-27 10:11:22,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:22,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:22,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:22,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:22,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 216 [2023-08-27 10:11:22,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 66 transitions, 430 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:22,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:22,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 216 [2023-08-27 10:11:22,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:22,650 INFO L124 PetriNetUnfolderBase]: 2839/4411 cut-off events. [2023-08-27 10:11:22,651 INFO L125 PetriNetUnfolderBase]: For 12997/13174 co-relation queries the response was YES. [2023-08-27 10:11:22,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18166 conditions, 4411 events. 2839/4411 cut-off events. For 12997/13174 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 24733 event pairs, 289 based on Foata normal form. 112/4282 useless extension candidates. Maximal degree in co-relation 18142. Up to 2358 conditions per place. [2023-08-27 10:11:22,687 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 107 selfloop transitions, 46 changer transitions 3/163 dead transitions. [2023-08-27 10:11:22,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 163 transitions, 1358 flow [2023-08-27 10:11:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 696 transitions. [2023-08-27 10:11:22,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2023-08-27 10:11:22,690 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 696 transitions. [2023-08-27 10:11:22,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 696 transitions. [2023-08-27 10:11:22,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:22,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 696 transitions. [2023-08-27 10:11:22,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.42857142857143) internal successors, (696), 7 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:22,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:22,694 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:22,694 INFO L175 Difference]: Start difference. First operand has 57 places, 66 transitions, 430 flow. Second operand 7 states and 696 transitions. [2023-08-27 10:11:22,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 163 transitions, 1358 flow [2023-08-27 10:11:22,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 163 transitions, 1356 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-27 10:11:22,724 INFO L231 Difference]: Finished difference. Result has 69 places, 98 transitions, 908 flow [2023-08-27 10:11:22,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=908, PETRI_PLACES=69, PETRI_TRANSITIONS=98} [2023-08-27 10:11:22,725 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 29 predicate places. [2023-08-27 10:11:22,725 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 98 transitions, 908 flow [2023-08-27 10:11:22,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:22,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:22,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:22,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 10:11:22,726 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:22,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1516976122, now seen corresponding path program 2 times [2023-08-27 10:11:22,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:22,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322278031] [2023-08-27 10:11:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:22,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:23,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:23,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322278031] [2023-08-27 10:11:23,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322278031] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:23,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:23,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:23,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655904038] [2023-08-27 10:11:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:23,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:23,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:23,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:23,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 216 [2023-08-27 10:11:23,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 98 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:23,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:23,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 216 [2023-08-27 10:11:23,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:23,904 INFO L124 PetriNetUnfolderBase]: 3056/4730 cut-off events. [2023-08-27 10:11:23,904 INFO L125 PetriNetUnfolderBase]: For 27825/28042 co-relation queries the response was YES. [2023-08-27 10:11:23,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23013 conditions, 4730 events. 3056/4730 cut-off events. For 27825/28042 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 26638 event pairs, 369 based on Foata normal form. 130/4600 useless extension candidates. Maximal degree in co-relation 22981. Up to 2364 conditions per place. [2023-08-27 10:11:23,945 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 115 selfloop transitions, 61 changer transitions 3/186 dead transitions. [2023-08-27 10:11:23,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 186 transitions, 1986 flow [2023-08-27 10:11:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 668 transitions. [2023-08-27 10:11:23,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4417989417989418 [2023-08-27 10:11:23,947 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 668 transitions. [2023-08-27 10:11:23,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 668 transitions. [2023-08-27 10:11:23,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:23,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 668 transitions. [2023-08-27 10:11:23,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:23,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:23,952 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:23,952 INFO L175 Difference]: Start difference. First operand has 69 places, 98 transitions, 908 flow. Second operand 7 states and 668 transitions. [2023-08-27 10:11:23,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 186 transitions, 1986 flow [2023-08-27 10:11:24,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 186 transitions, 1954 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-08-27 10:11:24,029 INFO L231 Difference]: Finished difference. Result has 81 places, 121 transitions, 1436 flow [2023-08-27 10:11:24,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1436, PETRI_PLACES=81, PETRI_TRANSITIONS=121} [2023-08-27 10:11:24,031 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 41 predicate places. [2023-08-27 10:11:24,031 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 121 transitions, 1436 flow [2023-08-27 10:11:24,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:24,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:24,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:24,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 10:11:24,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:24,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1519881225, now seen corresponding path program 1 times [2023-08-27 10:11:24,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:24,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156278543] [2023-08-27 10:11:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:24,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156278543] [2023-08-27 10:11:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156278543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750240235] [2023-08-27 10:11:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:24,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:24,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 216 [2023-08-27 10:11:24,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 121 transitions, 1436 flow. Second operand has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:24,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:24,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 216 [2023-08-27 10:11:24,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:25,157 INFO L124 PetriNetUnfolderBase]: 3319/5100 cut-off events. [2023-08-27 10:11:25,157 INFO L125 PetriNetUnfolderBase]: For 51880/52222 co-relation queries the response was YES. [2023-08-27 10:11:25,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28348 conditions, 5100 events. 3319/5100 cut-off events. For 51880/52222 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 28884 event pairs, 385 based on Foata normal form. 171/4981 useless extension candidates. Maximal degree in co-relation 28308. Up to 2379 conditions per place. [2023-08-27 10:11:25,208 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 161 selfloop transitions, 39 changer transitions 3/210 dead transitions. [2023-08-27 10:11:25,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 210 transitions, 2598 flow [2023-08-27 10:11:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 680 transitions. [2023-08-27 10:11:25,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497354497354497 [2023-08-27 10:11:25,211 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 680 transitions. [2023-08-27 10:11:25,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 680 transitions. [2023-08-27 10:11:25,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:25,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 680 transitions. [2023-08-27 10:11:25,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.14285714285714) internal successors, (680), 7 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:25,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:25,216 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:25,216 INFO L175 Difference]: Start difference. First operand has 81 places, 121 transitions, 1436 flow. Second operand 7 states and 680 transitions. [2023-08-27 10:11:25,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 210 transitions, 2598 flow [2023-08-27 10:11:25,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 210 transitions, 2548 flow, removed 25 selfloop flow, removed 0 redundant places. [2023-08-27 10:11:25,388 INFO L231 Difference]: Finished difference. Result has 91 places, 134 transitions, 1688 flow [2023-08-27 10:11:25,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1688, PETRI_PLACES=91, PETRI_TRANSITIONS=134} [2023-08-27 10:11:25,389 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 51 predicate places. [2023-08-27 10:11:25,389 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 134 transitions, 1688 flow [2023-08-27 10:11:25,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:25,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:25,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:25,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 10:11:25,390 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:25,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:25,390 INFO L85 PathProgramCache]: Analyzing trace with hash -129987617, now seen corresponding path program 1 times [2023-08-27 10:11:25,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:25,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647324056] [2023-08-27 10:11:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:25,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:25,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:25,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647324056] [2023-08-27 10:11:25,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647324056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:25,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:25,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:25,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765437639] [2023-08-27 10:11:25,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:25,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:25,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:25,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:25,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:25,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 216 [2023-08-27 10:11:25,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 134 transitions, 1688 flow. Second operand has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:25,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:25,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 216 [2023-08-27 10:11:25,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:26,568 INFO L124 PetriNetUnfolderBase]: 3497/5418 cut-off events. [2023-08-27 10:11:26,568 INFO L125 PetriNetUnfolderBase]: For 70142/70457 co-relation queries the response was YES. [2023-08-27 10:11:26,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32981 conditions, 5418 events. 3497/5418 cut-off events. For 70142/70457 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 31269 event pairs, 318 based on Foata normal form. 136/5267 useless extension candidates. Maximal degree in co-relation 32935. Up to 2786 conditions per place. [2023-08-27 10:11:26,619 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 141 selfloop transitions, 75 changer transitions 3/226 dead transitions. [2023-08-27 10:11:26,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 226 transitions, 2980 flow [2023-08-27 10:11:26,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 684 transitions. [2023-08-27 10:11:26,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2023-08-27 10:11:26,622 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 684 transitions. [2023-08-27 10:11:26,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 684 transitions. [2023-08-27 10:11:26,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:26,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 684 transitions. [2023-08-27 10:11:26,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:26,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:26,627 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:26,628 INFO L175 Difference]: Start difference. First operand has 91 places, 134 transitions, 1688 flow. Second operand 7 states and 684 transitions. [2023-08-27 10:11:26,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 226 transitions, 2980 flow [2023-08-27 10:11:26,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 226 transitions, 2906 flow, removed 15 selfloop flow, removed 3 redundant places. [2023-08-27 10:11:26,906 INFO L231 Difference]: Finished difference. Result has 99 places, 155 transitions, 2291 flow [2023-08-27 10:11:26,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2291, PETRI_PLACES=99, PETRI_TRANSITIONS=155} [2023-08-27 10:11:26,907 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 59 predicate places. [2023-08-27 10:11:26,907 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 155 transitions, 2291 flow [2023-08-27 10:11:26,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:26,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:26,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:26,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 10:11:26,908 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:26,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:26,909 INFO L85 PathProgramCache]: Analyzing trace with hash -221292227, now seen corresponding path program 2 times [2023-08-27 10:11:26,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:26,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607564684] [2023-08-27 10:11:26,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:26,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607564684] [2023-08-27 10:11:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607564684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:27,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:27,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:27,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053409436] [2023-08-27 10:11:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:27,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 10:11:27,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 10:11:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-27 10:11:27,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 216 [2023-08-27 10:11:27,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 155 transitions, 2291 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:27,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:27,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 216 [2023-08-27 10:11:27,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:28,106 INFO L124 PetriNetUnfolderBase]: 3553/5510 cut-off events. [2023-08-27 10:11:28,106 INFO L125 PetriNetUnfolderBase]: For 87468/87845 co-relation queries the response was YES. [2023-08-27 10:11:28,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36114 conditions, 5510 events. 3553/5510 cut-off events. For 87468/87845 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 32032 event pairs, 317 based on Foata normal form. 147/5343 useless extension candidates. Maximal degree in co-relation 36063. Up to 2185 conditions per place. [2023-08-27 10:11:28,152 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 157 selfloop transitions, 67 changer transitions 3/234 dead transitions. [2023-08-27 10:11:28,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 234 transitions, 3418 flow [2023-08-27 10:11:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 675 transitions. [2023-08-27 10:11:28,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2023-08-27 10:11:28,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 675 transitions. [2023-08-27 10:11:28,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 675 transitions. [2023-08-27 10:11:28,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:28,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 675 transitions. [2023-08-27 10:11:28,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.42857142857143) internal successors, (675), 7 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:28,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:28,159 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:28,159 INFO L175 Difference]: Start difference. First operand has 99 places, 155 transitions, 2291 flow. Second operand 7 states and 675 transitions. [2023-08-27 10:11:28,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 234 transitions, 3418 flow [2023-08-27 10:11:28,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 234 transitions, 3283 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:28,355 INFO L231 Difference]: Finished difference. Result has 107 places, 166 transitions, 2644 flow [2023-08-27 10:11:28,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=2179, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2644, PETRI_PLACES=107, PETRI_TRANSITIONS=166} [2023-08-27 10:11:28,356 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 67 predicate places. [2023-08-27 10:11:28,356 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 166 transitions, 2644 flow [2023-08-27 10:11:28,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:28,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:28,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:28,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 10:11:28,357 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:28,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:28,357 INFO L85 PathProgramCache]: Analyzing trace with hash -129937645, now seen corresponding path program 1 times [2023-08-27 10:11:28,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:28,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79641143] [2023-08-27 10:11:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:28,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:28,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79641143] [2023-08-27 10:11:28,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79641143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:28,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:28,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453876288] [2023-08-27 10:11:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:28,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:28,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:28,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:28,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 216 [2023-08-27 10:11:28,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 166 transitions, 2644 flow. Second operand has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:28,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:28,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 216 [2023-08-27 10:11:28,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:29,502 INFO L124 PetriNetUnfolderBase]: 3918/6050 cut-off events. [2023-08-27 10:11:29,503 INFO L125 PetriNetUnfolderBase]: For 105414/105858 co-relation queries the response was YES. [2023-08-27 10:11:29,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41343 conditions, 6050 events. 3918/6050 cut-off events. For 105414/105858 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 35626 event pairs, 423 based on Foata normal form. 159/5864 useless extension candidates. Maximal degree in co-relation 41288. Up to 3226 conditions per place. [2023-08-27 10:11:29,554 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 129 selfloop transitions, 117 changer transitions 3/256 dead transitions. [2023-08-27 10:11:29,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 256 transitions, 3925 flow [2023-08-27 10:11:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 10:11:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 10:11:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 875 transitions. [2023-08-27 10:11:29,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45010288065843623 [2023-08-27 10:11:29,557 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 875 transitions. [2023-08-27 10:11:29,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 875 transitions. [2023-08-27 10:11:29,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:29,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 875 transitions. [2023-08-27 10:11:29,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.22222222222223) internal successors, (875), 9 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:29,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:29,562 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:29,562 INFO L175 Difference]: Start difference. First operand has 107 places, 166 transitions, 2644 flow. Second operand 9 states and 875 transitions. [2023-08-27 10:11:29,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 256 transitions, 3925 flow [2023-08-27 10:11:29,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 256 transitions, 3842 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:29,879 INFO L231 Difference]: Finished difference. Result has 117 places, 192 transitions, 3364 flow [2023-08-27 10:11:29,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=2570, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3364, PETRI_PLACES=117, PETRI_TRANSITIONS=192} [2023-08-27 10:11:29,880 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 77 predicate places. [2023-08-27 10:11:29,881 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 192 transitions, 3364 flow [2023-08-27 10:11:29,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:29,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:29,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:29,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 10:11:29,881 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:29,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash -219743095, now seen corresponding path program 2 times [2023-08-27 10:11:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295035464] [2023-08-27 10:11:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:30,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295035464] [2023-08-27 10:11:30,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295035464] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:30,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:30,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:30,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606976730] [2023-08-27 10:11:30,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:30,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 10:11:30,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:30,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 10:11:30,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-27 10:11:30,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 216 [2023-08-27 10:11:30,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 192 transitions, 3364 flow. Second operand has 7 states, 7 states have (on average 89.85714285714286) internal successors, (629), 7 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:30,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:30,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 216 [2023-08-27 10:11:30,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:31,237 INFO L124 PetriNetUnfolderBase]: 4449/6902 cut-off events. [2023-08-27 10:11:31,237 INFO L125 PetriNetUnfolderBase]: For 143508/143974 co-relation queries the response was YES. [2023-08-27 10:11:31,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51662 conditions, 6902 events. 4449/6902 cut-off events. For 143508/143974 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 41988 event pairs, 361 based on Foata normal form. 221/6756 useless extension candidates. Maximal degree in co-relation 51603. Up to 2842 conditions per place. [2023-08-27 10:11:31,292 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 200 selfloop transitions, 126 changer transitions 3/336 dead transitions. [2023-08-27 10:11:31,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 336 transitions, 5812 flow [2023-08-27 10:11:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-27 10:11:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-27 10:11:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1071 transitions. [2023-08-27 10:11:31,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45075757575757575 [2023-08-27 10:11:31,295 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1071 transitions. [2023-08-27 10:11:31,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1071 transitions. [2023-08-27 10:11:31,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:31,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1071 transitions. [2023-08-27 10:11:31,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 97.36363636363636) internal successors, (1071), 11 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:31,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 216.0) internal successors, (2592), 12 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:31,302 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 216.0) internal successors, (2592), 12 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:31,302 INFO L175 Difference]: Start difference. First operand has 117 places, 192 transitions, 3364 flow. Second operand 11 states and 1071 transitions. [2023-08-27 10:11:31,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 336 transitions, 5812 flow [2023-08-27 10:11:31,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 336 transitions, 5539 flow, removed 56 selfloop flow, removed 4 redundant places. [2023-08-27 10:11:31,943 INFO L231 Difference]: Finished difference. Result has 128 places, 231 transitions, 4188 flow [2023-08-27 10:11:31,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=3173, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4188, PETRI_PLACES=128, PETRI_TRANSITIONS=231} [2023-08-27 10:11:31,944 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 88 predicate places. [2023-08-27 10:11:31,944 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 231 transitions, 4188 flow [2023-08-27 10:11:31,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.85714285714286) internal successors, (629), 7 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:31,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:31,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:31,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 10:11:31,945 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:31,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash 266813888, now seen corresponding path program 1 times [2023-08-27 10:11:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675021833] [2023-08-27 10:11:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:32,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:32,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675021833] [2023-08-27 10:11:32,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675021833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:32,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:32,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362373423] [2023-08-27 10:11:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:32,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 10:11:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 10:11:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-27 10:11:32,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 216 [2023-08-27 10:11:32,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 231 transitions, 4188 flow. Second operand has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:32,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:32,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 216 [2023-08-27 10:11:32,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:33,621 INFO L124 PetriNetUnfolderBase]: 4799/7472 cut-off events. [2023-08-27 10:11:33,621 INFO L125 PetriNetUnfolderBase]: For 150115/150666 co-relation queries the response was YES. [2023-08-27 10:11:33,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58853 conditions, 7472 events. 4799/7472 cut-off events. For 150115/150666 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 46379 event pairs, 419 based on Foata normal form. 187/7253 useless extension candidates. Maximal degree in co-relation 58789. Up to 3073 conditions per place. [2023-08-27 10:11:33,685 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 204 selfloop transitions, 131 changer transitions 3/345 dead transitions. [2023-08-27 10:11:33,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 345 transitions, 6214 flow [2023-08-27 10:11:33,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-27 10:11:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-27 10:11:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1060 transitions. [2023-08-27 10:11:33,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44612794612794615 [2023-08-27 10:11:33,688 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1060 transitions. [2023-08-27 10:11:33,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1060 transitions. [2023-08-27 10:11:33,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:33,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1060 transitions. [2023-08-27 10:11:33,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 96.36363636363636) internal successors, (1060), 11 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:33,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 216.0) internal successors, (2592), 12 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:33,695 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 216.0) internal successors, (2592), 12 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:33,695 INFO L175 Difference]: Start difference. First operand has 128 places, 231 transitions, 4188 flow. Second operand 11 states and 1060 transitions. [2023-08-27 10:11:33,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 345 transitions, 6214 flow [2023-08-27 10:11:34,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 345 transitions, 6017 flow, removed 89 selfloop flow, removed 1 redundant places. [2023-08-27 10:11:34,275 INFO L231 Difference]: Finished difference. Result has 141 places, 243 transitions, 4669 flow [2023-08-27 10:11:34,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=3999, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4669, PETRI_PLACES=141, PETRI_TRANSITIONS=243} [2023-08-27 10:11:34,276 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 101 predicate places. [2023-08-27 10:11:34,276 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 243 transitions, 4669 flow [2023-08-27 10:11:34,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:34,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:34,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:34,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 10:11:34,277 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:34,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1777812234, now seen corresponding path program 2 times [2023-08-27 10:11:34,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:34,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934395776] [2023-08-27 10:11:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:34,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934395776] [2023-08-27 10:11:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934395776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:34,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258599449] [2023-08-27 10:11:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:34,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 10:11:34,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:34,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 10:11:34,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-27 10:11:34,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 216 [2023-08-27 10:11:34,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 243 transitions, 4669 flow. Second operand has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:34,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:34,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 216 [2023-08-27 10:11:34,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:36,034 INFO L124 PetriNetUnfolderBase]: 5215/8135 cut-off events. [2023-08-27 10:11:36,034 INFO L125 PetriNetUnfolderBase]: For 185138/185771 co-relation queries the response was YES. [2023-08-27 10:11:36,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65919 conditions, 8135 events. 5215/8135 cut-off events. For 185138/185771 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 51497 event pairs, 491 based on Foata normal form. 194/7890 useless extension candidates. Maximal degree in co-relation 65850. Up to 3469 conditions per place. [2023-08-27 10:11:36,098 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 222 selfloop transitions, 146 changer transitions 3/378 dead transitions. [2023-08-27 10:11:36,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 378 transitions, 7283 flow [2023-08-27 10:11:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 10:11:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 10:11:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 863 transitions. [2023-08-27 10:11:36,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44393004115226337 [2023-08-27 10:11:36,101 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 863 transitions. [2023-08-27 10:11:36,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 863 transitions. [2023-08-27 10:11:36,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:36,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 863 transitions. [2023-08-27 10:11:36,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 95.88888888888889) internal successors, (863), 9 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:36,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:36,106 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:36,106 INFO L175 Difference]: Start difference. First operand has 141 places, 243 transitions, 4669 flow. Second operand 9 states and 863 transitions. [2023-08-27 10:11:36,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 378 transitions, 7283 flow [2023-08-27 10:11:36,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 378 transitions, 7128 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:36,673 INFO L231 Difference]: Finished difference. Result has 152 places, 275 transitions, 5736 flow [2023-08-27 10:11:36,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=4542, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5736, PETRI_PLACES=152, PETRI_TRANSITIONS=275} [2023-08-27 10:11:36,673 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 112 predicate places. [2023-08-27 10:11:36,673 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 275 transitions, 5736 flow [2023-08-27 10:11:36,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:36,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:36,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:36,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 10:11:36,674 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:36,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1818923814, now seen corresponding path program 3 times [2023-08-27 10:11:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:36,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704012966] [2023-08-27 10:11:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:37,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704012966] [2023-08-27 10:11:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704012966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:37,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:37,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 10:11:37,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885415117] [2023-08-27 10:11:37,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:37,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 10:11:37,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 10:11:37,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-27 10:11:37,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 216 [2023-08-27 10:11:37,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 275 transitions, 5736 flow. Second operand has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:37,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:37,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 216 [2023-08-27 10:11:37,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:39,671 INFO L124 PetriNetUnfolderBase]: 8092/12142 cut-off events. [2023-08-27 10:11:39,671 INFO L125 PetriNetUnfolderBase]: For 306981/306981 co-relation queries the response was YES. [2023-08-27 10:11:39,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102227 conditions, 12142 events. 8092/12142 cut-off events. For 306981/306981 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 74141 event pairs, 318 based on Foata normal form. 62/11783 useless extension candidates. Maximal degree in co-relation 102152. Up to 4681 conditions per place. [2023-08-27 10:11:39,798 INFO L140 encePairwiseOnDemand]: 204/216 looper letters, 297 selfloop transitions, 256 changer transitions 6/559 dead transitions. [2023-08-27 10:11:39,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 559 transitions, 11060 flow [2023-08-27 10:11:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-27 10:11:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-27 10:11:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1177 transitions. [2023-08-27 10:11:39,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41915954415954415 [2023-08-27 10:11:39,802 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1177 transitions. [2023-08-27 10:11:39,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1177 transitions. [2023-08-27 10:11:39,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:39,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1177 transitions. [2023-08-27 10:11:39,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.53846153846153) internal successors, (1177), 13 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:39,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 216.0) internal successors, (3024), 14 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:39,808 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 216.0) internal successors, (3024), 14 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:39,808 INFO L175 Difference]: Start difference. First operand has 152 places, 275 transitions, 5736 flow. Second operand 13 states and 1177 transitions. [2023-08-27 10:11:39,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 559 transitions, 11060 flow [2023-08-27 10:11:41,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 559 transitions, 10825 flow, removed 73 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:41,044 INFO L231 Difference]: Finished difference. Result has 173 places, 402 transitions, 8972 flow [2023-08-27 10:11:41,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=5579, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8972, PETRI_PLACES=173, PETRI_TRANSITIONS=402} [2023-08-27 10:11:41,044 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 133 predicate places. [2023-08-27 10:11:41,045 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 402 transitions, 8972 flow [2023-08-27 10:11:41,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.75) internal successors, (646), 8 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:41,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:41,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:41,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 10:11:41,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:41,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:41,046 INFO L85 PathProgramCache]: Analyzing trace with hash -453243832, now seen corresponding path program 1 times [2023-08-27 10:11:41,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:41,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916961152] [2023-08-27 10:11:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:41,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:41,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:41,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916961152] [2023-08-27 10:11:41,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916961152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:41,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:41,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:11:41,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414850174] [2023-08-27 10:11:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:41,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:11:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:11:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:11:41,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 216 [2023-08-27 10:11:41,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 402 transitions, 8972 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:41,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:41,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 216 [2023-08-27 10:11:41,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:41,937 INFO L124 PetriNetUnfolderBase]: 2183/3780 cut-off events. [2023-08-27 10:11:41,937 INFO L125 PetriNetUnfolderBase]: For 130618/131191 co-relation queries the response was YES. [2023-08-27 10:11:41,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33320 conditions, 3780 events. 2183/3780 cut-off events. For 130618/131191 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 24496 event pairs, 300 based on Foata normal form. 423/3884 useless extension candidates. Maximal degree in co-relation 33233. Up to 2131 conditions per place. [2023-08-27 10:11:41,971 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 322 selfloop transitions, 5 changer transitions 0/356 dead transitions. [2023-08-27 10:11:41,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 356 transitions, 7964 flow [2023-08-27 10:11:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:11:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:11:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2023-08-27 10:11:41,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47453703703703703 [2023-08-27 10:11:41,973 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 410 transitions. [2023-08-27 10:11:41,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 410 transitions. [2023-08-27 10:11:41,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:41,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 410 transitions. [2023-08-27 10:11:41,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:41,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:41,976 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:41,976 INFO L175 Difference]: Start difference. First operand has 173 places, 402 transitions, 8972 flow. Second operand 4 states and 410 transitions. [2023-08-27 10:11:41,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 356 transitions, 7964 flow [2023-08-27 10:11:42,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 356 transitions, 7628 flow, removed 158 selfloop flow, removed 2 redundant places. [2023-08-27 10:11:42,384 INFO L231 Difference]: Finished difference. Result has 176 places, 273 transitions, 5623 flow [2023-08-27 10:11:42,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=5541, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=5623, PETRI_PLACES=176, PETRI_TRANSITIONS=273} [2023-08-27 10:11:42,385 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 136 predicate places. [2023-08-27 10:11:42,385 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 273 transitions, 5623 flow [2023-08-27 10:11:42,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:42,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:42,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:42,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 10:11:42,386 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:42,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1106591167, now seen corresponding path program 1 times [2023-08-27 10:11:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:42,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120678284] [2023-08-27 10:11:42,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:42,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:42,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120678284] [2023-08-27 10:11:42,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120678284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:42,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:42,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591442452] [2023-08-27 10:11:42,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:42,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 10:11:42,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:42,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 10:11:42,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-27 10:11:42,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 216 [2023-08-27 10:11:42,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 273 transitions, 5623 flow. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:42,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:42,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 216 [2023-08-27 10:11:42,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:44,103 INFO L124 PetriNetUnfolderBase]: 2745/4778 cut-off events. [2023-08-27 10:11:44,103 INFO L125 PetriNetUnfolderBase]: For 164926/165390 co-relation queries the response was YES. [2023-08-27 10:11:44,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42005 conditions, 4778 events. 2745/4778 cut-off events. For 164926/165390 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 31923 event pairs, 247 based on Foata normal form. 167/4710 useless extension candidates. Maximal degree in co-relation 41916. Up to 1666 conditions per place. [2023-08-27 10:11:44,149 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 228 selfloop transitions, 128 changer transitions 6/381 dead transitions. [2023-08-27 10:11:44,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 381 transitions, 8278 flow [2023-08-27 10:11:44,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 10:11:44,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 10:11:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 763 transitions. [2023-08-27 10:11:44,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44155092592592593 [2023-08-27 10:11:44,151 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 763 transitions. [2023-08-27 10:11:44,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 763 transitions. [2023-08-27 10:11:44,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:44,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 763 transitions. [2023-08-27 10:11:44,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.375) internal successors, (763), 8 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:44,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:44,156 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:44,156 INFO L175 Difference]: Start difference. First operand has 176 places, 273 transitions, 5623 flow. Second operand 8 states and 763 transitions. [2023-08-27 10:11:44,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 381 transitions, 8278 flow [2023-08-27 10:11:44,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 381 transitions, 8212 flow, removed 24 selfloop flow, removed 3 redundant places. [2023-08-27 10:11:44,643 INFO L231 Difference]: Finished difference. Result has 184 places, 286 transitions, 6515 flow [2023-08-27 10:11:44,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=5578, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6515, PETRI_PLACES=184, PETRI_TRANSITIONS=286} [2023-08-27 10:11:44,644 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 144 predicate places. [2023-08-27 10:11:44,644 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 286 transitions, 6515 flow [2023-08-27 10:11:44,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:44,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:44,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:44,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 10:11:44,644 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:44,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:44,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1684449542, now seen corresponding path program 1 times [2023-08-27 10:11:44,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:44,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348296867] [2023-08-27 10:11:44,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:44,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:44,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:44,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348296867] [2023-08-27 10:11:44,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348296867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:44,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:44,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:44,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480262198] [2023-08-27 10:11:44,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:44,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:44,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:44,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:44,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 216 [2023-08-27 10:11:44,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 286 transitions, 6515 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:44,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:44,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 216 [2023-08-27 10:11:44,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:45,405 INFO L124 PetriNetUnfolderBase]: 1262/2268 cut-off events. [2023-08-27 10:11:45,405 INFO L125 PetriNetUnfolderBase]: For 66369/66871 co-relation queries the response was YES. [2023-08-27 10:11:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16556 conditions, 2268 events. 1262/2268 cut-off events. For 66369/66871 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14255 event pairs, 183 based on Foata normal form. 363/2469 useless extension candidates. Maximal degree in co-relation 16492. Up to 802 conditions per place. [2023-08-27 10:11:45,431 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 171 selfloop transitions, 8 changer transitions 0/195 dead transitions. [2023-08-27 10:11:45,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 195 transitions, 4115 flow [2023-08-27 10:11:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:11:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:11:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2023-08-27 10:11:45,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2023-08-27 10:11:45,433 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2023-08-27 10:11:45,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2023-08-27 10:11:45,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:45,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2023-08-27 10:11:45,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,446 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,446 INFO L175 Difference]: Start difference. First operand has 184 places, 286 transitions, 6515 flow. Second operand 5 states and 512 transitions. [2023-08-27 10:11:45,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 195 transitions, 4115 flow [2023-08-27 10:11:45,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 195 transitions, 3312 flow, removed 78 selfloop flow, removed 47 redundant places. [2023-08-27 10:11:45,554 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 1878 flow [2023-08-27 10:11:45,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=1818, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1878, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-27 10:11:45,555 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 88 predicate places. [2023-08-27 10:11:45,555 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 1878 flow [2023-08-27 10:11:45,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:45,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:45,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 10:11:45,556 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:45,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1446075252, now seen corresponding path program 1 times [2023-08-27 10:11:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963528396] [2023-08-27 10:11:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:45,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:45,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963528396] [2023-08-27 10:11:45,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963528396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:45,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:45,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:11:45,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850098700] [2023-08-27 10:11:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:45,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:45,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:45,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:45,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:45,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2023-08-27 10:11:45,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 1878 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:45,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2023-08-27 10:11:45,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:45,945 INFO L124 PetriNetUnfolderBase]: 1197/2110 cut-off events. [2023-08-27 10:11:45,945 INFO L125 PetriNetUnfolderBase]: For 32487/32856 co-relation queries the response was YES. [2023-08-27 10:11:45,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14671 conditions, 2110 events. 1197/2110 cut-off events. For 32487/32856 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 12906 event pairs, 169 based on Foata normal form. 142/2188 useless extension candidates. Maximal degree in co-relation 14627. Up to 780 conditions per place. [2023-08-27 10:11:45,957 INFO L140 encePairwiseOnDemand]: 209/216 looper letters, 119 selfloop transitions, 10 changer transitions 50/192 dead transitions. [2023-08-27 10:11:45,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 192 transitions, 3555 flow [2023-08-27 10:11:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:11:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:11:45,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 515 transitions. [2023-08-27 10:11:45,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47685185185185186 [2023-08-27 10:11:45,958 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 515 transitions. [2023-08-27 10:11:45,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 515 transitions. [2023-08-27 10:11:45,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:45,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 515 transitions. [2023-08-27 10:11:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,961 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:45,961 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 1878 flow. Second operand 5 states and 515 transitions. [2023-08-27 10:11:45,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 192 transitions, 3555 flow [2023-08-27 10:11:46,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 3532 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-27 10:11:46,049 INFO L231 Difference]: Finished difference. Result has 126 places, 81 transitions, 1155 flow [2023-08-27 10:11:46,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1155, PETRI_PLACES=126, PETRI_TRANSITIONS=81} [2023-08-27 10:11:46,050 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 86 predicate places. [2023-08-27 10:11:46,050 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 81 transitions, 1155 flow [2023-08-27 10:11:46,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:46,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:46,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:46,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 10:11:46,050 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:46,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash 506580681, now seen corresponding path program 1 times [2023-08-27 10:11:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:46,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262187731] [2023-08-27 10:11:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:46,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:46,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262187731] [2023-08-27 10:11:46,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262187731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:46,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:46,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:11:46,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336933965] [2023-08-27 10:11:46,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:46,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:11:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:11:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:11:46,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 216 [2023-08-27 10:11:46,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 81 transitions, 1155 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:46,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:46,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 216 [2023-08-27 10:11:46,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:46,849 INFO L124 PetriNetUnfolderBase]: 2072/3477 cut-off events. [2023-08-27 10:11:46,849 INFO L125 PetriNetUnfolderBase]: For 38250/38250 co-relation queries the response was YES. [2023-08-27 10:11:46,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22462 conditions, 3477 events. 2072/3477 cut-off events. For 38250/38250 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 20806 event pairs, 309 based on Foata normal form. 14/3491 useless extension candidates. Maximal degree in co-relation 22418. Up to 1755 conditions per place. [2023-08-27 10:11:46,866 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 67 selfloop transitions, 11 changer transitions 59/137 dead transitions. [2023-08-27 10:11:46,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 137 transitions, 2102 flow [2023-08-27 10:11:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 10:11:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 10:11:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2023-08-27 10:11:46,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158950617283951 [2023-08-27 10:11:46,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 539 transitions. [2023-08-27 10:11:46,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 539 transitions. [2023-08-27 10:11:46,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:46,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 539 transitions. [2023-08-27 10:11:46,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:46,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:46,871 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:46,871 INFO L175 Difference]: Start difference. First operand has 126 places, 81 transitions, 1155 flow. Second operand 6 states and 539 transitions. [2023-08-27 10:11:46,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 137 transitions, 2102 flow [2023-08-27 10:11:47,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 137 transitions, 1725 flow, removed 46 selfloop flow, removed 24 redundant places. [2023-08-27 10:11:47,006 INFO L231 Difference]: Finished difference. Result has 88 places, 61 transitions, 699 flow [2023-08-27 10:11:47,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=699, PETRI_PLACES=88, PETRI_TRANSITIONS=61} [2023-08-27 10:11:47,006 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 48 predicate places. [2023-08-27 10:11:47,006 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 61 transitions, 699 flow [2023-08-27 10:11:47,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:47,007 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 10:11:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 10:11:47,007 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:47,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1797072394, now seen corresponding path program 1 times [2023-08-27 10:11:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:47,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034663768] [2023-08-27 10:11:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:47,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034663768] [2023-08-27 10:11:47,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034663768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:47,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:47,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:47,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373550956] [2023-08-27 10:11:47,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:47,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:47,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:47,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 216 [2023-08-27 10:11:47,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 61 transitions, 699 flow. Second operand has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:47,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 216 [2023-08-27 10:11:47,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:47,701 INFO L124 PetriNetUnfolderBase]: 592/1235 cut-off events. [2023-08-27 10:11:47,702 INFO L125 PetriNetUnfolderBase]: For 9028/9028 co-relation queries the response was YES. [2023-08-27 10:11:47,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7403 conditions, 1235 events. 592/1235 cut-off events. For 9028/9028 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7260 event pairs, 81 based on Foata normal form. 12/1247 useless extension candidates. Maximal degree in co-relation 7371. Up to 505 conditions per place. [2023-08-27 10:11:47,708 INFO L140 encePairwiseOnDemand]: 206/216 looper letters, 69 selfloop transitions, 9 changer transitions 75/153 dead transitions. [2023-08-27 10:11:47,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 153 transitions, 1959 flow [2023-08-27 10:11:47,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:11:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:11:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2023-08-27 10:11:47,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41005291005291006 [2023-08-27 10:11:47,710 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2023-08-27 10:11:47,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2023-08-27 10:11:47,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:47,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2023-08-27 10:11:47,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,713 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,713 INFO L175 Difference]: Start difference. First operand has 88 places, 61 transitions, 699 flow. Second operand 7 states and 620 transitions. [2023-08-27 10:11:47,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 153 transitions, 1959 flow [2023-08-27 10:11:47,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 153 transitions, 1717 flow, removed 69 selfloop flow, removed 10 redundant places. [2023-08-27 10:11:47,733 INFO L231 Difference]: Finished difference. Result has 84 places, 49 transitions, 496 flow [2023-08-27 10:11:47,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=496, PETRI_PLACES=84, PETRI_TRANSITIONS=49} [2023-08-27 10:11:47,733 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 44 predicate places. [2023-08-27 10:11:47,733 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 49 transitions, 496 flow [2023-08-27 10:11:47,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:47,734 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 10:11:47,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 10:11:47,734 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:47,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:47,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2057094700, now seen corresponding path program 1 times [2023-08-27 10:11:47,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:47,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516739201] [2023-08-27 10:11:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:47,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:11:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:11:47,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:11:47,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516739201] [2023-08-27 10:11:47,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516739201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:11:47,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:11:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 10:11:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438512713] [2023-08-27 10:11:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:11:47,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:11:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:11:47,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:11:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:11:47,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 216 [2023-08-27 10:11:47,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 49 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:47,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:11:47,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 216 [2023-08-27 10:11:47,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:11:48,006 INFO L124 PetriNetUnfolderBase]: 163/385 cut-off events. [2023-08-27 10:11:48,006 INFO L125 PetriNetUnfolderBase]: For 2422/2433 co-relation queries the response was YES. [2023-08-27 10:11:48,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 385 events. 163/385 cut-off events. For 2422/2433 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1920 event pairs, 25 based on Foata normal form. 46/428 useless extension candidates. Maximal degree in co-relation 1846. Up to 117 conditions per place. [2023-08-27 10:11:48,009 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 22 selfloop transitions, 11 changer transitions 35/71 dead transitions. [2023-08-27 10:11:48,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 71 transitions, 880 flow [2023-08-27 10:11:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 10:11:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 10:11:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 578 transitions. [2023-08-27 10:11:48,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44598765432098764 [2023-08-27 10:11:48,010 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 578 transitions. [2023-08-27 10:11:48,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 578 transitions. [2023-08-27 10:11:48,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:11:48,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 578 transitions. [2023-08-27 10:11:48,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.33333333333333) internal successors, (578), 6 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:48,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:48,013 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:48,013 INFO L175 Difference]: Start difference. First operand has 84 places, 49 transitions, 496 flow. Second operand 6 states and 578 transitions. [2023-08-27 10:11:48,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 71 transitions, 880 flow [2023-08-27 10:11:48,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 71 transitions, 745 flow, removed 26 selfloop flow, removed 15 redundant places. [2023-08-27 10:11:48,018 INFO L231 Difference]: Finished difference. Result has 74 places, 29 transitions, 226 flow [2023-08-27 10:11:48,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=74, PETRI_TRANSITIONS=29} [2023-08-27 10:11:48,019 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 34 predicate places. [2023-08-27 10:11:48,019 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 29 transitions, 226 flow [2023-08-27 10:11:48,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:11:48,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:11:48,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:48,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 10:11:48,020 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-08-27 10:11:48,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:11:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2144890790, now seen corresponding path program 1 times [2023-08-27 10:11:48,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:11:48,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584024692] [2023-08-27 10:11:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:11:48,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:11:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:11:48,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 10:11:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:11:48,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 10:11:48,118 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 10:11:48,119 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (17 of 18 remaining) [2023-08-27 10:11:48,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-08-27 10:11:48,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-08-27 10:11:48,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONASSERT (12 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-08-27 10:11:48,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONASSERT (2 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-08-27 10:11:48,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-08-27 10:11:48,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 10:11:48,126 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:11:48,132 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:11:48,132 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:11:48,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:11:48 BasicIcfg [2023-08-27 10:11:48,203 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:11:48,204 INFO L158 Benchmark]: Toolchain (without parser) took 36264.11ms. Allocated memory was 367.0MB in the beginning and 3.3GB in the end (delta: 2.9GB). Free memory was 341.6MB in the beginning and 2.8GB in the end (delta: -2.4GB). Peak memory consumption was 484.6MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,204 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory was 344.4MB in the beginning and 344.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:11:48,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.48ms. Allocated memory is still 367.0MB. Free memory was 341.6MB in the beginning and 318.7MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.76ms. Allocated memory is still 367.0MB. Free memory was 318.7MB in the beginning and 315.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,208 INFO L158 Benchmark]: Boogie Preprocessor took 38.87ms. Allocated memory is still 367.0MB. Free memory was 315.9MB in the beginning and 313.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,209 INFO L158 Benchmark]: RCFGBuilder took 671.53ms. Allocated memory is still 367.0MB. Free memory was 313.8MB in the beginning and 278.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,209 INFO L158 Benchmark]: TraceAbstraction took 34957.52ms. Allocated memory was 367.0MB in the beginning and 3.3GB in the end (delta: 2.9GB). Free memory was 277.5MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 421.7MB. Max. memory is 16.0GB. [2023-08-27 10:11:48,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory was 344.4MB in the beginning and 344.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 498.48ms. Allocated memory is still 367.0MB. Free memory was 341.6MB in the beginning and 318.7MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 75.76ms. Allocated memory is still 367.0MB. Free memory was 318.7MB in the beginning and 315.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.87ms. Allocated memory is still 367.0MB. Free memory was 315.9MB in the beginning and 313.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 671.53ms. Allocated memory is still 367.0MB. Free memory was 313.8MB in the beginning and 278.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 34957.52ms. Allocated memory was 367.0MB in the beginning and 3.3GB in the end (delta: 2.9GB). Free memory was 277.5MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 421.7MB. 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: 3.7s, 120 PlacesBefore, 40 PlacesAfterwards, 113 TransitionsBefore, 31 TransitionsAfterwards, 2616 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 100 TotalNumberOfCompositions, 9281 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3138, independent: 2872, independent conditional: 0, independent unconditional: 2872, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1388, independent: 1341, independent conditional: 0, independent unconditional: 1341, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3138, independent: 1531, independent conditional: 0, independent unconditional: 1531, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 1388, unknown conditional: 0, unknown unconditional: 1388] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 121, Positive conditional cache size: 0, Positive unconditional cache size: 121, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 17]: assertion can be violated assertion can be violated We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L735] 0 int z = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1492; [L814] FCALL, FORK 0 pthread_create(&t1492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1492, ((void *)0), P0, ((void *)0))=-2, t1492={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t1493; [L816] FCALL, FORK 0 pthread_create(&t1493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1493, ((void *)0), P1, ((void *)0))=-1, t1492={5:0}, t1493={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L817] 0 pthread_t t1494; [L818] FCALL, FORK 0 pthread_create(&t1494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1494, ((void *)0), P2, ((void *)0))=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L780] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L780] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=0] [L741] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L756] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0, z=1] [L759] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1, z=1] [L769] EXPR 2 __unbuffered_cnt + 1 [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] [L749] EXPR 1 __unbuffered_cnt + 1 [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L751] 1 return 0; [L798] EXPR 3 __unbuffered_cnt + 1 [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] [L822] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L822] RET 0 assume_abort_if_not(main$tmp_guard0) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L846] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\read(__PRETTY_FUNCTION__)={53:54}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2, z=1] - UnprovableResult [Line: 749]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 798]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 798]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 18 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: 34.8s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 23.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1005 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1005 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 171 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3354 IncrementalHoareTripleChecker+Invalid, 3525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 171 mSolverCounterUnsat, 65 mSDtfsCounter, 3354 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8972occurred in iteration=16, InterpolantAutomatonStates: 155, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 2523 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-27 10:11:48,233 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...