/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:46:45,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:46:45,538 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 03:46:45,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:46:45,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:46:45,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:46:45,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:46:45,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:46:45,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:46:45,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:46:45,577 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:46:45,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:46:45,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:46:45,578 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:46:45,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:46:45,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:46:45,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:46:45,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:46:45,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:46:45,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:46:45,579 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:46:45,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:46:45,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:46:45,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:46:45,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:46:45,585 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:46:45,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:46:45,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:46:45,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:46:45,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:46:45,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:46:45,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:46:45,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:46:45,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:46:45,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:46:45,587 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:46:45,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:46:45,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:46:45,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:46:45,801 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:46:45,801 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:46:45,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2023-08-27 03:46:46,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:46:46,825 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:46:46,825 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2023-08-27 03:46:46,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b97c46d/5433887313c54d8a9eb443832f6839ce/FLAG86fbdaa6b [2023-08-27 03:46:46,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b97c46d/5433887313c54d8a9eb443832f6839ce [2023-08-27 03:46:46,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:46:46,862 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:46:46,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:46:46,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:46:46,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:46:46,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:46:46" (1/1) ... [2023-08-27 03:46:46,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bef411b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:46, skipping insertion in model container [2023-08-27 03:46:46,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:46:46" (1/1) ... [2023-08-27 03:46:46,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:46:47,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:46:47,209 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:46:47,221 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:46:47,222 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:46:47,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:46:47,288 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:46:47,288 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:46:47,293 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:46:47,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47 WrapperNode [2023-08-27 03:46:47,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:46:47,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:46:47,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:46:47,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:46:47,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,327 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 170 [2023-08-27 03:46:47,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:46:47,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:46:47,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:46:47,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:46:47,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:46:47,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:46:47,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:46:47,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:46:47,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (1/1) ... [2023-08-27 03:46:47,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:46:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:46:47,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 03:46:47,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:46:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 03:46:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 03:46:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 03:46:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 03:46:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 03:46:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 03:46:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-27 03:46:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-27 03:46:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:46:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:46:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:46:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:46:47,427 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 03:46:47,564 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:46:47,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:46:47,852 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:46:47,945 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:46:47,945 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:46:47,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:46:47 BoogieIcfgContainer [2023-08-27 03:46:47,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:46:47,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:46:47,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:46:47,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:46:47,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:46:46" (1/3) ... [2023-08-27 03:46:47,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653c8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:46:47, skipping insertion in model container [2023-08-27 03:46:47,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:46:47" (2/3) ... [2023-08-27 03:46:47,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653c8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:46:47, skipping insertion in model container [2023-08-27 03:46:47,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:46:47" (3/3) ... [2023-08-27 03:46:47,953 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2023-08-27 03:46:47,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:46:47,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-27 03:46:47,964 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:46:48,014 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:46:48,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 306 flow [2023-08-27 03:46:48,099 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-08-27 03:46:48,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:46:48,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-27 03:46:48,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 143 transitions, 306 flow [2023-08-27 03:46:48,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 139 transitions, 290 flow [2023-08-27 03:46:48,113 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:46:48,122 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 139 transitions, 290 flow [2023-08-27 03:46:48,124 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 139 transitions, 290 flow [2023-08-27 03:46:48,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 139 transitions, 290 flow [2023-08-27 03:46:48,165 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-08-27 03:46:48,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:46:48,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-08-27 03:46:48,169 INFO L119 LiptonReduction]: Number of co-enabled transitions 4466 [2023-08-27 03:46:52,102 INFO L134 LiptonReduction]: Checked pairs total: 16684 [2023-08-27 03:46:52,102 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-08-27 03:46:52,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:46:52,116 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;@6a3bf766, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:46:52,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-27 03:46:52,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:46:52,120 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-27 03:46:52,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:46:52,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:52,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:46:52,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:52,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash 597368638, now seen corresponding path program 1 times [2023-08-27 03:46:52,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:52,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499632425] [2023-08-27 03:46:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:52,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:52,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499632425] [2023-08-27 03:46:52,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499632425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:52,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:52,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:46:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116049522] [2023-08-27 03:46:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:52,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:46:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:52,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:46:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:46:52,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:46:52,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:52,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:52,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:46:52,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:53,772 INFO L124 PetriNetUnfolderBase]: 11796/16377 cut-off events. [2023-08-27 03:46:53,772 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2023-08-27 03:46:53,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32944 conditions, 16377 events. 11796/16377 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 95238 event pairs, 3216 based on Foata normal form. 0/10776 useless extension candidates. Maximal degree in co-relation 32932. Up to 14456 conditions per place. [2023-08-27 03:46:53,864 INFO L140 encePairwiseOnDemand]: 254/267 looper letters, 51 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-08-27 03:46:53,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 253 flow [2023-08-27 03:46:53,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:46:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:46:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-27 03:46:53,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5068664169787765 [2023-08-27 03:46:53,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-27 03:46:53,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-27 03:46:53,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:53,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-27 03:46:53,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:53,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:53,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:53,883 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 86 flow. Second operand 3 states and 406 transitions. [2023-08-27 03:46:53,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 253 flow [2023-08-27 03:46:53,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 03:46:53,888 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-08-27 03:46:53,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-08-27 03:46:53,891 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-27 03:46:53,891 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-08-27 03:46:53,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:53,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:53,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:53,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:46:53,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:53,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1400287072, now seen corresponding path program 1 times [2023-08-27 03:46:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:53,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407291032] [2023-08-27 03:46:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:53,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:54,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:54,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407291032] [2023-08-27 03:46:54,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407291032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:54,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:54,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:46:54,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589347064] [2023-08-27 03:46:54,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:54,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:46:54,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:46:54,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:46:54,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-27 03:46:54,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:54,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-27 03:46:54,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:54,867 INFO L124 PetriNetUnfolderBase]: 7832/11836 cut-off events. [2023-08-27 03:46:54,867 INFO L125 PetriNetUnfolderBase]: For 1067/1280 co-relation queries the response was YES. [2023-08-27 03:46:54,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28460 conditions, 11836 events. 7832/11836 cut-off events. For 1067/1280 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 78919 event pairs, 2347 based on Foata normal form. 0/9132 useless extension candidates. Maximal degree in co-relation 28449. Up to 8463 conditions per place. [2023-08-27 03:46:54,922 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 51 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2023-08-27 03:46:54,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 298 flow [2023-08-27 03:46:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:46:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:46:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-08-27 03:46:54,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5043695380774033 [2023-08-27 03:46:54,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-08-27 03:46:54,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-08-27 03:46:54,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:54,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-08-27 03:46:54,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,927 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 3 states and 404 transitions. [2023-08-27 03:46:54,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 298 flow [2023-08-27 03:46:54,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 03:46:54,929 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 126 flow [2023-08-27 03:46:54,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2023-08-27 03:46:54,930 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-08-27 03:46:54,930 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 126 flow [2023-08-27 03:46:54,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:54,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:54,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:46:54,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:54,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1021018044, now seen corresponding path program 1 times [2023-08-27 03:46:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:54,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395043146] [2023-08-27 03:46:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:54,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:54,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:54,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395043146] [2023-08-27 03:46:54,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395043146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:54,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:54,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:46:54,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331875385] [2023-08-27 03:46:54,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:54,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:46:54,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:54,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:46:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:46:54,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:46:54,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:54,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:54,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:46:54,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:55,667 INFO L124 PetriNetUnfolderBase]: 6091/8492 cut-off events. [2023-08-27 03:46:55,667 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2023-08-27 03:46:55,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20640 conditions, 8492 events. 6091/8492 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 45437 event pairs, 1525 based on Foata normal form. 0/6745 useless extension candidates. Maximal degree in co-relation 20628. Up to 7072 conditions per place. [2023-08-27 03:46:55,703 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-27 03:46:55,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 254 flow [2023-08-27 03:46:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:46:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:46:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 510 transitions. [2023-08-27 03:46:55,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47752808988764045 [2023-08-27 03:46:55,706 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 510 transitions. [2023-08-27 03:46:55,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 510 transitions. [2023-08-27 03:46:55,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:55,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 510 transitions. [2023-08-27 03:46:55,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.5) internal successors, (510), 4 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:55,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:55,709 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:55,709 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 126 flow. Second operand 4 states and 510 transitions. [2023-08-27 03:46:55,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 254 flow [2023-08-27 03:46:55,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:46:55,712 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 116 flow [2023-08-27 03:46:55,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-27 03:46:55,712 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2023-08-27 03:46:55,713 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 116 flow [2023-08-27 03:46:55,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:55,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:55,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:55,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:46:55,713 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:55,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:55,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1136499779, now seen corresponding path program 1 times [2023-08-27 03:46:55,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:55,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89022889] [2023-08-27 03:46:55,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:55,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:55,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:55,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89022889] [2023-08-27 03:46:55,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89022889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:55,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:46:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905998401] [2023-08-27 03:46:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:55,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:46:55,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:46:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:46:55,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:46:55,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:55,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:55,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:46:55,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:56,229 INFO L124 PetriNetUnfolderBase]: 3967/5596 cut-off events. [2023-08-27 03:46:56,229 INFO L125 PetriNetUnfolderBase]: For 1564/1564 co-relation queries the response was YES. [2023-08-27 03:46:56,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13492 conditions, 5596 events. 3967/5596 cut-off events. For 1564/1564 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 28384 event pairs, 996 based on Foata normal form. 0/4993 useless extension candidates. Maximal degree in co-relation 13480. Up to 2093 conditions per place. [2023-08-27 03:46:56,246 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 61 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2023-08-27 03:46:56,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 74 transitions, 350 flow [2023-08-27 03:46:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:46:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:46:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 530 transitions. [2023-08-27 03:46:56,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49625468164794007 [2023-08-27 03:46:56,248 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 530 transitions. [2023-08-27 03:46:56,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 530 transitions. [2023-08-27 03:46:56,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:56,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 530 transitions. [2023-08-27 03:46:56,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:56,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:56,251 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:56,251 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 116 flow. Second operand 4 states and 530 transitions. [2023-08-27 03:46:56,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 74 transitions, 350 flow [2023-08-27 03:46:56,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:46:56,253 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 168 flow [2023-08-27 03:46:56,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-27 03:46:56,254 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2023-08-27 03:46:56,254 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 168 flow [2023-08-27 03:46:56,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:56,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:56,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:56,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 03:46:56,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:56,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1263334048, now seen corresponding path program 1 times [2023-08-27 03:46:56,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:56,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127414212] [2023-08-27 03:46:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:56,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:56,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:56,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:56,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127414212] [2023-08-27 03:46:56,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127414212] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:56,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:56,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:46:56,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803979047] [2023-08-27 03:46:56,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:56,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:46:56,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:56,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:46:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:46:56,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 267 [2023-08-27 03:46:56,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:56,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:56,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 267 [2023-08-27 03:46:56,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:58,006 INFO L124 PetriNetUnfolderBase]: 14610/20144 cut-off events. [2023-08-27 03:46:58,007 INFO L125 PetriNetUnfolderBase]: For 13716/13716 co-relation queries the response was YES. [2023-08-27 03:46:58,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54758 conditions, 20144 events. 14610/20144 cut-off events. For 13716/13716 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 108807 event pairs, 1158 based on Foata normal form. 0/18921 useless extension candidates. Maximal degree in co-relation 54745. Up to 14063 conditions per place. [2023-08-27 03:46:58,080 INFO L140 encePairwiseOnDemand]: 254/267 looper letters, 84 selfloop transitions, 14 changer transitions 0/98 dead transitions. [2023-08-27 03:46:58,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 98 transitions, 588 flow [2023-08-27 03:46:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:46:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:46:58,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-08-27 03:46:58,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46254681647940077 [2023-08-27 03:46:58,082 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-08-27 03:46:58,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-08-27 03:46:58,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:58,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-08-27 03:46:58,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:58,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:58,085 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:58,085 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 168 flow. Second operand 4 states and 494 transitions. [2023-08-27 03:46:58,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 98 transitions, 588 flow [2023-08-27 03:46:58,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 98 transitions, 546 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-27 03:46:58,097 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 258 flow [2023-08-27 03:46:58,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2023-08-27 03:46:58,099 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-08-27 03:46:58,100 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 258 flow [2023-08-27 03:46:58,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:58,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:58,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:58,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 03:46:58,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:58,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash -508652217, now seen corresponding path program 1 times [2023-08-27 03:46:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:58,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524209187] [2023-08-27 03:46:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:58,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:58,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524209187] [2023-08-27 03:46:58,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524209187] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:58,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:58,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:46:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918868789] [2023-08-27 03:46:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:58,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:46:58,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:58,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:46:58,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:46:58,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 267 [2023-08-27 03:46:58,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:58,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:58,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 267 [2023-08-27 03:46:58,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:46:59,354 INFO L124 PetriNetUnfolderBase]: 9462/13529 cut-off events. [2023-08-27 03:46:59,354 INFO L125 PetriNetUnfolderBase]: For 13232/13447 co-relation queries the response was YES. [2023-08-27 03:46:59,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 13529 events. 9462/13529 cut-off events. For 13232/13447 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 77069 event pairs, 2512 based on Foata normal form. 175/12951 useless extension candidates. Maximal degree in co-relation 44727. Up to 8318 conditions per place. [2023-08-27 03:46:59,413 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 69 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-08-27 03:46:59,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 541 flow [2023-08-27 03:46:59,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:46:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:46:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-27 03:46:59,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49563046192259674 [2023-08-27 03:46:59,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-27 03:46:59,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-27 03:46:59,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:46:59,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-27 03:46:59,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:59,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:59,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:59,417 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 258 flow. Second operand 3 states and 397 transitions. [2023-08-27 03:46:59,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 541 flow [2023-08-27 03:46:59,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 541 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 03:46:59,420 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 269 flow [2023-08-27 03:46:59,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-08-27 03:46:59,421 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 5 predicate places. [2023-08-27 03:46:59,421 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 269 flow [2023-08-27 03:46:59,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:59,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:46:59,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:46:59,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 03:46:59,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:46:59,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:46:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash -315161571, now seen corresponding path program 1 times [2023-08-27 03:46:59,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:46:59,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956904854] [2023-08-27 03:46:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:46:59,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:46:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:46:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:46:59,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:46:59,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956904854] [2023-08-27 03:46:59,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956904854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:46:59,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:46:59,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:46:59,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40876984] [2023-08-27 03:46:59,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:46:59,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:46:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:46:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:46:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:46:59,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 267 [2023-08-27 03:46:59,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:46:59,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:46:59,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 267 [2023-08-27 03:46:59,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:00,978 INFO L124 PetriNetUnfolderBase]: 11530/16520 cut-off events. [2023-08-27 03:47:00,978 INFO L125 PetriNetUnfolderBase]: For 17410/17628 co-relation queries the response was YES. [2023-08-27 03:47:01,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55391 conditions, 16520 events. 11530/16520 cut-off events. For 17410/17628 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 96380 event pairs, 2102 based on Foata normal form. 81/15692 useless extension candidates. Maximal degree in co-relation 55372. Up to 13906 conditions per place. [2023-08-27 03:47:01,043 INFO L140 encePairwiseOnDemand]: 263/267 looper letters, 67 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2023-08-27 03:47:01,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 78 transitions, 525 flow [2023-08-27 03:47:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:47:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:47:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-08-27 03:47:01,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48064918851435706 [2023-08-27 03:47:01,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-08-27 03:47:01,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-08-27 03:47:01,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:01,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-08-27 03:47:01,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:01,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:01,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 267.0) internal successors, (1068), 4 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:01,047 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 269 flow. Second operand 3 states and 385 transitions. [2023-08-27 03:47:01,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 78 transitions, 525 flow [2023-08-27 03:47:01,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:47:01,053 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 295 flow [2023-08-27 03:47:01,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2023-08-27 03:47:01,054 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 6 predicate places. [2023-08-27 03:47:01,054 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 295 flow [2023-08-27 03:47:01,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:01,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:01,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:01,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:47:01,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:01,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:01,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1180077866, now seen corresponding path program 1 times [2023-08-27 03:47:01,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:01,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304251008] [2023-08-27 03:47:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:01,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:01,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:01,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304251008] [2023-08-27 03:47:01,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304251008] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:01,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:01,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:47:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623249311] [2023-08-27 03:47:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:47:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:47:01,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:47:01,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 267 [2023-08-27 03:47:01,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:01,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:01,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 267 [2023-08-27 03:47:01,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:03,186 INFO L124 PetriNetUnfolderBase]: 14640/20201 cut-off events. [2023-08-27 03:47:03,186 INFO L125 PetriNetUnfolderBase]: For 20704/20704 co-relation queries the response was YES. [2023-08-27 03:47:03,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71745 conditions, 20201 events. 14640/20201 cut-off events. For 20704/20704 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 107923 event pairs, 1232 based on Foata normal form. 51/19624 useless extension candidates. Maximal degree in co-relation 71725. Up to 12244 conditions per place. [2023-08-27 03:47:03,291 INFO L140 encePairwiseOnDemand]: 253/267 looper letters, 118 selfloop transitions, 37 changer transitions 0/155 dead transitions. [2023-08-27 03:47:03,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 155 transitions, 1093 flow [2023-08-27 03:47:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 616 transitions. [2023-08-27 03:47:03,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46142322097378274 [2023-08-27 03:47:03,293 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 616 transitions. [2023-08-27 03:47:03,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 616 transitions. [2023-08-27 03:47:03,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:03,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 616 transitions. [2023-08-27 03:47:03,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.2) internal successors, (616), 5 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 03:47:03,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:03,296 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:03,297 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 295 flow. Second operand 5 states and 616 transitions. [2023-08-27 03:47:03,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 155 transitions, 1093 flow [2023-08-27 03:47:03,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 155 transitions, 1087 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 03:47:03,306 INFO L231 Difference]: Finished difference. Result has 63 places, 83 transitions, 624 flow [2023-08-27 03:47:03,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=624, PETRI_PLACES=63, PETRI_TRANSITIONS=83} [2023-08-27 03:47:03,307 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 13 predicate places. [2023-08-27 03:47:03,307 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 83 transitions, 624 flow [2023-08-27 03:47:03,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:03,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:03,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:03,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 03:47:03,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:03,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash -7772266, now seen corresponding path program 2 times [2023-08-27 03:47:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:03,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961304178] [2023-08-27 03:47:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:03,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:03,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961304178] [2023-08-27 03:47:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961304178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:03,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:03,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006705336] [2023-08-27 03:47:03,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:03,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:03,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:03,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 83 transitions, 624 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:03,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:03,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:03,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:05,047 INFO L124 PetriNetUnfolderBase]: 12625/18051 cut-off events. [2023-08-27 03:47:05,047 INFO L125 PetriNetUnfolderBase]: For 45717/46167 co-relation queries the response was YES. [2023-08-27 03:47:05,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77370 conditions, 18051 events. 12625/18051 cut-off events. For 45717/46167 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 104392 event pairs, 1860 based on Foata normal form. 178/17469 useless extension candidates. Maximal degree in co-relation 77345. Up to 12809 conditions per place. [2023-08-27 03:47:05,150 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 102 selfloop transitions, 16 changer transitions 0/133 dead transitions. [2023-08-27 03:47:05,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 133 transitions, 1156 flow [2023-08-27 03:47:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:47:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:47:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 520 transitions. [2023-08-27 03:47:05,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868913857677903 [2023-08-27 03:47:05,157 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 520 transitions. [2023-08-27 03:47:05,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 520 transitions. [2023-08-27 03:47:05,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:05,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 520 transitions. [2023-08-27 03:47:05,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:05,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:05,160 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:05,160 INFO L175 Difference]: Start difference. First operand has 63 places, 83 transitions, 624 flow. Second operand 4 states and 520 transitions. [2023-08-27 03:47:05,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 133 transitions, 1156 flow [2023-08-27 03:47:05,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 1156 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 03:47:05,187 INFO L231 Difference]: Finished difference. Result has 67 places, 90 transitions, 733 flow [2023-08-27 03:47:05,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=733, PETRI_PLACES=67, PETRI_TRANSITIONS=90} [2023-08-27 03:47:05,187 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2023-08-27 03:47:05,187 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 90 transitions, 733 flow [2023-08-27 03:47:05,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:05,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:05,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:05,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 03:47:05,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:05,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:05,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1180075634, now seen corresponding path program 1 times [2023-08-27 03:47:05,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:05,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352035861] [2023-08-27 03:47:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:05,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:05,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:05,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352035861] [2023-08-27 03:47:05,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352035861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:05,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:05,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:05,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907878919] [2023-08-27 03:47:05,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:05,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:05,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:05,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:05,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:05,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:05,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 90 transitions, 733 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:05,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:05,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:05,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:07,008 INFO L124 PetriNetUnfolderBase]: 13114/18675 cut-off events. [2023-08-27 03:47:07,008 INFO L125 PetriNetUnfolderBase]: For 58611/59245 co-relation queries the response was YES. [2023-08-27 03:47:07,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83800 conditions, 18675 events. 13114/18675 cut-off events. For 58611/59245 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 108549 event pairs, 1650 based on Foata normal form. 266/18050 useless extension candidates. Maximal degree in co-relation 83772. Up to 14221 conditions per place. [2023-08-27 03:47:07,134 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 113 selfloop transitions, 13 changer transitions 0/141 dead transitions. [2023-08-27 03:47:07,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 141 transitions, 1319 flow [2023-08-27 03:47:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:47:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:47:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-08-27 03:47:07,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48314606741573035 [2023-08-27 03:47:07,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-08-27 03:47:07,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-08-27 03:47:07,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:07,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-08-27 03:47:07,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:07,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:07,138 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:07,138 INFO L175 Difference]: Start difference. First operand has 67 places, 90 transitions, 733 flow. Second operand 4 states and 516 transitions. [2023-08-27 03:47:07,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 141 transitions, 1319 flow [2023-08-27 03:47:07,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 141 transitions, 1303 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-27 03:47:07,171 INFO L231 Difference]: Finished difference. Result has 70 places, 97 transitions, 823 flow [2023-08-27 03:47:07,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=823, PETRI_PLACES=70, PETRI_TRANSITIONS=97} [2023-08-27 03:47:07,172 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 20 predicate places. [2023-08-27 03:47:07,172 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 97 transitions, 823 flow [2023-08-27 03:47:07,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:07,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:07,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:07,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 03:47:07,173 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:07,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:07,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2070324862, now seen corresponding path program 1 times [2023-08-27 03:47:07,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:07,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134453260] [2023-08-27 03:47:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:07,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:07,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134453260] [2023-08-27 03:47:07,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134453260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:07,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:07,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:07,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553163272] [2023-08-27 03:47:07,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:07,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:07,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:07,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:07,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 97 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:07,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:07,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:07,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:09,087 INFO L124 PetriNetUnfolderBase]: 13055/18648 cut-off events. [2023-08-27 03:47:09,087 INFO L125 PetriNetUnfolderBase]: For 69017/69487 co-relation queries the response was YES. [2023-08-27 03:47:09,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86205 conditions, 18648 events. 13055/18648 cut-off events. For 69017/69487 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 108196 event pairs, 1803 based on Foata normal form. 227/18130 useless extension candidates. Maximal degree in co-relation 86175. Up to 13294 conditions per place. [2023-08-27 03:47:09,213 INFO L140 encePairwiseOnDemand]: 259/267 looper letters, 107 selfloop transitions, 24 changer transitions 0/146 dead transitions. [2023-08-27 03:47:09,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 146 transitions, 1387 flow [2023-08-27 03:47:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:47:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:47:09,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 519 transitions. [2023-08-27 03:47:09,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4859550561797753 [2023-08-27 03:47:09,215 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 519 transitions. [2023-08-27 03:47:09,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 519 transitions. [2023-08-27 03:47:09,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:09,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 519 transitions. [2023-08-27 03:47:09,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:09,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:09,217 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:09,217 INFO L175 Difference]: Start difference. First operand has 70 places, 97 transitions, 823 flow. Second operand 4 states and 519 transitions. [2023-08-27 03:47:09,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 146 transitions, 1387 flow [2023-08-27 03:47:09,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 146 transitions, 1367 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-27 03:47:09,253 INFO L231 Difference]: Finished difference. Result has 73 places, 109 transitions, 1014 flow [2023-08-27 03:47:09,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1014, PETRI_PLACES=73, PETRI_TRANSITIONS=109} [2023-08-27 03:47:09,254 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 23 predicate places. [2023-08-27 03:47:09,254 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 109 transitions, 1014 flow [2023-08-27 03:47:09,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:09,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:09,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:09,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 03:47:09,254 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:09,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:09,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2072290293, now seen corresponding path program 1 times [2023-08-27 03:47:09,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:09,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347075703] [2023-08-27 03:47:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:09,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347075703] [2023-08-27 03:47:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347075703] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:09,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:09,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500124514] [2023-08-27 03:47:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:09,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:09,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:09,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:09,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:47:09,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 109 transitions, 1014 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:09,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:09,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:47:09,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:11,364 INFO L124 PetriNetUnfolderBase]: 13998/19869 cut-off events. [2023-08-27 03:47:11,364 INFO L125 PetriNetUnfolderBase]: For 82373/83046 co-relation queries the response was YES. [2023-08-27 03:47:11,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96182 conditions, 19869 events. 13998/19869 cut-off events. For 82373/83046 co-relation queries the response was YES. Maximal size of possible extension queue 758. Compared 115689 event pairs, 1918 based on Foata normal form. 237/19287 useless extension candidates. Maximal degree in co-relation 96150. Up to 13828 conditions per place. [2023-08-27 03:47:11,462 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 120 selfloop transitions, 32 changer transitions 0/167 dead transitions. [2023-08-27 03:47:11,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 167 transitions, 1664 flow [2023-08-27 03:47:11,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 636 transitions. [2023-08-27 03:47:11,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4764044943820225 [2023-08-27 03:47:11,464 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 636 transitions. [2023-08-27 03:47:11,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 636 transitions. [2023-08-27 03:47:11,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:11,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 636 transitions. [2023-08-27 03:47:11,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:11,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:11,467 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:11,467 INFO L175 Difference]: Start difference. First operand has 73 places, 109 transitions, 1014 flow. Second operand 5 states and 636 transitions. [2023-08-27 03:47:11,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 167 transitions, 1664 flow [2023-08-27 03:47:11,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 167 transitions, 1649 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-27 03:47:11,506 INFO L231 Difference]: Finished difference. Result has 77 places, 117 transitions, 1166 flow [2023-08-27 03:47:11,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1166, PETRI_PLACES=77, PETRI_TRANSITIONS=117} [2023-08-27 03:47:11,506 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 27 predicate places. [2023-08-27 03:47:11,506 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 117 transitions, 1166 flow [2023-08-27 03:47:11,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:11,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:11,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:11,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 03:47:11,507 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:11,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2003901813, now seen corresponding path program 2 times [2023-08-27 03:47:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:11,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961804799] [2023-08-27 03:47:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:11,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:11,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:11,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961804799] [2023-08-27 03:47:11,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961804799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:11,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:11,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:11,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338414800] [2023-08-27 03:47:11,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:11,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:11,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:11,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:11,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:11,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 117 transitions, 1166 flow. Second operand has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:11,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:11,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:11,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:13,684 INFO L124 PetriNetUnfolderBase]: 14427/20451 cut-off events. [2023-08-27 03:47:13,685 INFO L125 PetriNetUnfolderBase]: For 107050/107730 co-relation queries the response was YES. [2023-08-27 03:47:13,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104897 conditions, 20451 events. 14427/20451 cut-off events. For 107050/107730 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 119292 event pairs, 1926 based on Foata normal form. 234/19848 useless extension candidates. Maximal degree in co-relation 104863. Up to 14028 conditions per place. [2023-08-27 03:47:13,800 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 122 selfloop transitions, 36 changer transitions 0/173 dead transitions. [2023-08-27 03:47:13,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 173 transitions, 1830 flow [2023-08-27 03:47:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2023-08-27 03:47:13,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48389513108614235 [2023-08-27 03:47:13,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2023-08-27 03:47:13,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2023-08-27 03:47:13,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:13,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2023-08-27 03:47:13,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.2) internal successors, (646), 5 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 03:47:13,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:13,805 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:13,805 INFO L175 Difference]: Start difference. First operand has 77 places, 117 transitions, 1166 flow. Second operand 5 states and 646 transitions. [2023-08-27 03:47:13,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 173 transitions, 1830 flow [2023-08-27 03:47:13,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 173 transitions, 1765 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:13,870 INFO L231 Difference]: Finished difference. Result has 79 places, 123 transitions, 1272 flow [2023-08-27 03:47:13,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1272, PETRI_PLACES=79, PETRI_TRANSITIONS=123} [2023-08-27 03:47:13,871 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 29 predicate places. [2023-08-27 03:47:13,871 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 123 transitions, 1272 flow [2023-08-27 03:47:13,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:13,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:13,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:13,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 03:47:13,871 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:13,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash 697618233, now seen corresponding path program 3 times [2023-08-27 03:47:13,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:13,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959937070] [2023-08-27 03:47:13,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:13,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:14,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:14,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959937070] [2023-08-27 03:47:14,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959937070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:14,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:14,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86522306] [2023-08-27 03:47:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:14,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:14,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:14,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 267 [2023-08-27 03:47:14,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 123 transitions, 1272 flow. Second operand has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:14,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:14,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 267 [2023-08-27 03:47:14,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:16,281 INFO L124 PetriNetUnfolderBase]: 16139/22909 cut-off events. [2023-08-27 03:47:16,282 INFO L125 PetriNetUnfolderBase]: For 135762/136541 co-relation queries the response was YES. [2023-08-27 03:47:16,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120485 conditions, 22909 events. 16139/22909 cut-off events. For 135762/136541 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 136582 event pairs, 2033 based on Foata normal form. 360/22290 useless extension candidates. Maximal degree in co-relation 120450. Up to 12296 conditions per place. [2023-08-27 03:47:16,437 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 132 selfloop transitions, 48 changer transitions 0/195 dead transitions. [2023-08-27 03:47:16,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 195 transitions, 2116 flow [2023-08-27 03:47:16,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 657 transitions. [2023-08-27 03:47:16,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49213483146067416 [2023-08-27 03:47:16,439 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 657 transitions. [2023-08-27 03:47:16,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 657 transitions. [2023-08-27 03:47:16,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:16,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 657 transitions. [2023-08-27 03:47:16,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:16,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:16,442 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:16,442 INFO L175 Difference]: Start difference. First operand has 79 places, 123 transitions, 1272 flow. Second operand 5 states and 657 transitions. [2023-08-27 03:47:16,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 195 transitions, 2116 flow [2023-08-27 03:47:16,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 195 transitions, 2047 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:16,553 INFO L231 Difference]: Finished difference. Result has 81 places, 129 transitions, 1431 flow [2023-08-27 03:47:16,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1431, PETRI_PLACES=81, PETRI_TRANSITIONS=129} [2023-08-27 03:47:16,554 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 31 predicate places. [2023-08-27 03:47:16,554 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 129 transitions, 1431 flow [2023-08-27 03:47:16,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:16,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:16,554 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 03:47:16,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 03:47:16,554 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:16,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:16,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2045980501, now seen corresponding path program 1 times [2023-08-27 03:47:16,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:16,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241500154] [2023-08-27 03:47:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:16,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241500154] [2023-08-27 03:47:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241500154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675917017] [2023-08-27 03:47:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:16,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:16,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:16,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 129 transitions, 1431 flow. Second operand has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:16,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:16,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:16,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:19,116 INFO L124 PetriNetUnfolderBase]: 14604/20332 cut-off events. [2023-08-27 03:47:19,116 INFO L125 PetriNetUnfolderBase]: For 181658/184345 co-relation queries the response was YES. [2023-08-27 03:47:19,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116679 conditions, 20332 events. 14604/20332 cut-off events. For 181658/184345 co-relation queries the response was YES. Maximal size of possible extension queue 998. Compared 121078 event pairs, 1798 based on Foata normal form. 1223/21031 useless extension candidates. Maximal degree in co-relation 116643. Up to 9978 conditions per place. [2023-08-27 03:47:19,262 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 290 selfloop transitions, 13 changer transitions 0/322 dead transitions. [2023-08-27 03:47:19,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 322 transitions, 4385 flow [2023-08-27 03:47:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 662 transitions. [2023-08-27 03:47:19,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4958801498127341 [2023-08-27 03:47:19,264 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 662 transitions. [2023-08-27 03:47:19,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 662 transitions. [2023-08-27 03:47:19,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:19,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 662 transitions. [2023-08-27 03:47:19,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:19,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:19,267 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:19,267 INFO L175 Difference]: Start difference. First operand has 81 places, 129 transitions, 1431 flow. Second operand 5 states and 662 transitions. [2023-08-27 03:47:19,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 322 transitions, 4385 flow [2023-08-27 03:47:19,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 322 transitions, 4161 flow, removed 34 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:19,416 INFO L231 Difference]: Finished difference. Result has 83 places, 133 transitions, 1427 flow [2023-08-27 03:47:19,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1353, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1427, PETRI_PLACES=83, PETRI_TRANSITIONS=133} [2023-08-27 03:47:19,416 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2023-08-27 03:47:19,417 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 133 transitions, 1427 flow [2023-08-27 03:47:19,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:19,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:19,417 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 03:47:19,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 03:47:19,417 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:19,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:19,417 INFO L85 PathProgramCache]: Analyzing trace with hash -242387733, now seen corresponding path program 1 times [2023-08-27 03:47:19,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:19,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891060403] [2023-08-27 03:47:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:19,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:19,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891060403] [2023-08-27 03:47:19,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891060403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:19,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:19,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321791889] [2023-08-27 03:47:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:19,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:19,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:19,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:19,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:19,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 133 transitions, 1427 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:19,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:19,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:19,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:22,391 INFO L124 PetriNetUnfolderBase]: 16756/23631 cut-off events. [2023-08-27 03:47:22,391 INFO L125 PetriNetUnfolderBase]: For 154736/155682 co-relation queries the response was YES. [2023-08-27 03:47:22,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130740 conditions, 23631 events. 16756/23631 cut-off events. For 154736/155682 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 140879 event pairs, 2022 based on Foata normal form. 384/23586 useless extension candidates. Maximal degree in co-relation 130703. Up to 11395 conditions per place. [2023-08-27 03:47:22,548 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 139 selfloop transitions, 62 changer transitions 0/216 dead transitions. [2023-08-27 03:47:22,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 216 transitions, 2477 flow [2023-08-27 03:47:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 03:47:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 03:47:22,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2023-08-27 03:47:22,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48252184769038703 [2023-08-27 03:47:22,550 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2023-08-27 03:47:22,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2023-08-27 03:47:22,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:22,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2023-08-27 03:47:22,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:22,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:22,553 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:22,553 INFO L175 Difference]: Start difference. First operand has 83 places, 133 transitions, 1427 flow. Second operand 6 states and 773 transitions. [2023-08-27 03:47:22,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 216 transitions, 2477 flow [2023-08-27 03:47:23,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 216 transitions, 2383 flow, removed 20 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:23,044 INFO L231 Difference]: Finished difference. Result has 87 places, 145 transitions, 1747 flow [2023-08-27 03:47:23,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1747, PETRI_PLACES=87, PETRI_TRANSITIONS=145} [2023-08-27 03:47:23,045 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 37 predicate places. [2023-08-27 03:47:23,045 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 145 transitions, 1747 flow [2023-08-27 03:47:23,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:23,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:23,045 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 03:47:23,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 03:47:23,046 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:23,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:23,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1991410333, now seen corresponding path program 2 times [2023-08-27 03:47:23,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:23,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363019526] [2023-08-27 03:47:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:23,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363019526] [2023-08-27 03:47:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363019526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:23,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:23,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 03:47:23,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093121525] [2023-08-27 03:47:23,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:23,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 03:47:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:23,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 03:47:23,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-27 03:47:23,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-27 03:47:23,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 145 transitions, 1747 flow. Second operand has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:23,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:23,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-27 03:47:23,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:26,284 INFO L124 PetriNetUnfolderBase]: 17029/24052 cut-off events. [2023-08-27 03:47:26,285 INFO L125 PetriNetUnfolderBase]: For 191649/192605 co-relation queries the response was YES. [2023-08-27 03:47:26,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138961 conditions, 24052 events. 17029/24052 cut-off events. For 191649/192605 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 144381 event pairs, 2022 based on Foata normal form. 398/24021 useless extension candidates. Maximal degree in co-relation 138922. Up to 11470 conditions per place. [2023-08-27 03:47:26,600 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 140 selfloop transitions, 54 changer transitions 0/209 dead transitions. [2023-08-27 03:47:26,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 209 transitions, 2579 flow [2023-08-27 03:47:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2023-08-27 03:47:26,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47265917602996255 [2023-08-27 03:47:26,602 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2023-08-27 03:47:26,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2023-08-27 03:47:26,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:26,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2023-08-27 03:47:26,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:26,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:26,604 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:26,605 INFO L175 Difference]: Start difference. First operand has 87 places, 145 transitions, 1747 flow. Second operand 5 states and 631 transitions. [2023-08-27 03:47:26,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 209 transitions, 2579 flow [2023-08-27 03:47:27,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 209 transitions, 2503 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:27,079 INFO L231 Difference]: Finished difference. Result has 89 places, 149 transitions, 1897 flow [2023-08-27 03:47:27,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1671, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1897, PETRI_PLACES=89, PETRI_TRANSITIONS=149} [2023-08-27 03:47:27,080 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 39 predicate places. [2023-08-27 03:47:27,080 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 149 transitions, 1897 flow [2023-08-27 03:47:27,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:27,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:27,080 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 03:47:27,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 03:47:27,081 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:27,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -181428403, now seen corresponding path program 1 times [2023-08-27 03:47:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:27,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899727625] [2023-08-27 03:47:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:27,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:27,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899727625] [2023-08-27 03:47:27,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899727625] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:27,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:27,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:27,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988197997] [2023-08-27 03:47:27,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:27,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:27,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:27,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:27,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 267 [2023-08-27 03:47:27,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 149 transitions, 1897 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 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 03:47:27,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:27,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 267 [2023-08-27 03:47:27,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:31,273 INFO L124 PetriNetUnfolderBase]: 27041/37014 cut-off events. [2023-08-27 03:47:31,274 INFO L125 PetriNetUnfolderBase]: For 281094/281094 co-relation queries the response was YES. [2023-08-27 03:47:31,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214862 conditions, 37014 events. 27041/37014 cut-off events. For 281094/281094 co-relation queries the response was YES. Maximal size of possible extension queue 1373. Compared 212270 event pairs, 1245 based on Foata normal form. 184/37118 useless extension candidates. Maximal degree in co-relation 214822. Up to 16211 conditions per place. [2023-08-27 03:47:31,514 INFO L140 encePairwiseOnDemand]: 253/267 looper letters, 266 selfloop transitions, 118 changer transitions 0/384 dead transitions. [2023-08-27 03:47:31,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 384 transitions, 5364 flow [2023-08-27 03:47:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 03:47:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 03:47:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2023-08-27 03:47:31,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44569288389513106 [2023-08-27 03:47:31,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 714 transitions. [2023-08-27 03:47:31,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 714 transitions. [2023-08-27 03:47:31,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:31,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 714 transitions. [2023-08-27 03:47:31,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:31,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:31,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:31,519 INFO L175 Difference]: Start difference. First operand has 89 places, 149 transitions, 1897 flow. Second operand 6 states and 714 transitions. [2023-08-27 03:47:31,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 384 transitions, 5364 flow [2023-08-27 03:47:32,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 384 transitions, 5198 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-27 03:47:32,283 INFO L231 Difference]: Finished difference. Result has 96 places, 240 transitions, 3720 flow [2023-08-27 03:47:32,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1819, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3720, PETRI_PLACES=96, PETRI_TRANSITIONS=240} [2023-08-27 03:47:32,284 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 46 predicate places. [2023-08-27 03:47:32,284 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 240 transitions, 3720 flow [2023-08-27 03:47:32,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 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 03:47:32,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:32,284 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 03:47:32,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 03:47:32,284 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:32,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:32,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1761223413, now seen corresponding path program 2 times [2023-08-27 03:47:32,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:32,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832937289] [2023-08-27 03:47:32,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:32,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:32,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832937289] [2023-08-27 03:47:32,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832937289] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:32,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:32,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:32,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050891398] [2023-08-27 03:47:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:32,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:47:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:47:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:47:32,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:47:32,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 240 transitions, 3720 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 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 03:47:32,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:32,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:47:32,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:35,835 INFO L124 PetriNetUnfolderBase]: 17679/25637 cut-off events. [2023-08-27 03:47:35,835 INFO L125 PetriNetUnfolderBase]: For 363312/370466 co-relation queries the response was YES. [2023-08-27 03:47:35,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166455 conditions, 25637 events. 17679/25637 cut-off events. For 363312/370466 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 170651 event pairs, 1915 based on Foata normal form. 4604/29237 useless extension candidates. Maximal degree in co-relation 166410. Up to 16601 conditions per place. [2023-08-27 03:47:36,038 INFO L140 encePairwiseOnDemand]: 260/267 looper letters, 481 selfloop transitions, 10 changer transitions 4/524 dead transitions. [2023-08-27 03:47:36,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 524 transitions, 9704 flow [2023-08-27 03:47:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:47:36,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:47:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2023-08-27 03:47:36,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4771535580524345 [2023-08-27 03:47:36,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2023-08-27 03:47:36,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2023-08-27 03:47:36,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:36,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2023-08-27 03:47:36,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:36,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:36,043 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:36,043 INFO L175 Difference]: Start difference. First operand has 96 places, 240 transitions, 3720 flow. Second operand 5 states and 637 transitions. [2023-08-27 03:47:36,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 524 transitions, 9704 flow [2023-08-27 03:47:36,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 524 transitions, 9704 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 03:47:36,900 INFO L231 Difference]: Finished difference. Result has 103 places, 231 transitions, 3619 flow [2023-08-27 03:47:36,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3500, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3619, PETRI_PLACES=103, PETRI_TRANSITIONS=231} [2023-08-27 03:47:36,901 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 53 predicate places. [2023-08-27 03:47:36,901 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 231 transitions, 3619 flow [2023-08-27 03:47:36,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 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 03:47:36,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:36,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:36,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 03:47:36,901 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:36,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:36,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2019542329, now seen corresponding path program 1 times [2023-08-27 03:47:36,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:36,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496079410] [2023-08-27 03:47:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:37,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:37,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496079410] [2023-08-27 03:47:37,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496079410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:37,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:37,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:37,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080271356] [2023-08-27 03:47:37,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:37,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:47:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:47:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:47:37,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:47:37,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 231 transitions, 3619 flow. Second operand has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:37,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:37,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:47:37,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:39,461 INFO L124 PetriNetUnfolderBase]: 12505/18653 cut-off events. [2023-08-27 03:47:39,461 INFO L125 PetriNetUnfolderBase]: For 316089/323591 co-relation queries the response was YES. [2023-08-27 03:47:39,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124072 conditions, 18653 events. 12505/18653 cut-off events. For 316089/323591 co-relation queries the response was YES. Maximal size of possible extension queue 1106. Compared 125733 event pairs, 755 based on Foata normal form. 4029/21834 useless extension candidates. Maximal degree in co-relation 124022. Up to 9025 conditions per place. [2023-08-27 03:47:39,588 INFO L140 encePairwiseOnDemand]: 260/267 looper letters, 578 selfloop transitions, 19 changer transitions 4/627 dead transitions. [2023-08-27 03:47:39,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 627 transitions, 11825 flow [2023-08-27 03:47:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:47:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:47:39,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2023-08-27 03:47:39,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-27 03:47:39,590 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2023-08-27 03:47:39,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2023-08-27 03:47:39,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:39,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2023-08-27 03:47:39,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:39,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:39,593 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:39,593 INFO L175 Difference]: Start difference. First operand has 103 places, 231 transitions, 3619 flow. Second operand 7 states and 890 transitions. [2023-08-27 03:47:39,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 627 transitions, 11825 flow [2023-08-27 03:47:40,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 627 transitions, 11811 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:47:40,273 INFO L231 Difference]: Finished difference. Result has 110 places, 198 transitions, 3090 flow [2023-08-27 03:47:40,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2956, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3090, PETRI_PLACES=110, PETRI_TRANSITIONS=198} [2023-08-27 03:47:40,273 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 60 predicate places. [2023-08-27 03:47:40,273 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 198 transitions, 3090 flow [2023-08-27 03:47:40,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:40,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:40,274 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] [2023-08-27 03:47:40,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 03:47:40,274 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:40,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1972238989, now seen corresponding path program 1 times [2023-08-27 03:47:40,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:40,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220689727] [2023-08-27 03:47:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:40,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:40,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220689727] [2023-08-27 03:47:40,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220689727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:40,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:40,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:47:40,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94977190] [2023-08-27 03:47:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:40,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:47:40,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:47:40,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:47:40,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 267 [2023-08-27 03:47:40,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 198 transitions, 3090 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:40,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:40,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 267 [2023-08-27 03:47:40,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:44,142 INFO L124 PetriNetUnfolderBase]: 19790/29481 cut-off events. [2023-08-27 03:47:44,142 INFO L125 PetriNetUnfolderBase]: For 331543/331543 co-relation queries the response was YES. [2023-08-27 03:47:44,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195710 conditions, 29481 events. 19790/29481 cut-off events. For 331543/331543 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 195206 event pairs, 4950 based on Foata normal form. 55/29364 useless extension candidates. Maximal degree in co-relation 195657. Up to 15317 conditions per place. [2023-08-27 03:47:44,356 INFO L140 encePairwiseOnDemand]: 255/267 looper letters, 264 selfloop transitions, 87 changer transitions 4/355 dead transitions. [2023-08-27 03:47:44,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 355 transitions, 5930 flow [2023-08-27 03:47:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:47:44,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:47:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 497 transitions. [2023-08-27 03:47:44,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4653558052434457 [2023-08-27 03:47:44,358 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 497 transitions. [2023-08-27 03:47:44,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 497 transitions. [2023-08-27 03:47:44,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:44,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 497 transitions. [2023-08-27 03:47:44,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.25) internal successors, (497), 4 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:44,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:44,360 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:44,360 INFO L175 Difference]: Start difference. First operand has 110 places, 198 transitions, 3090 flow. Second operand 4 states and 497 transitions. [2023-08-27 03:47:44,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 355 transitions, 5930 flow [2023-08-27 03:47:46,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 355 transitions, 5862 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-27 03:47:46,216 INFO L231 Difference]: Finished difference. Result has 112 places, 255 transitions, 4648 flow [2023-08-27 03:47:46,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=4648, PETRI_PLACES=112, PETRI_TRANSITIONS=255} [2023-08-27 03:47:46,216 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 62 predicate places. [2023-08-27 03:47:46,216 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 255 transitions, 4648 flow [2023-08-27 03:47:46,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:46,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:46,216 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 03:47:46,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 03:47:46,217 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:46,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:46,217 INFO L85 PathProgramCache]: Analyzing trace with hash -236522956, now seen corresponding path program 1 times [2023-08-27 03:47:46,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:46,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089540237] [2023-08-27 03:47:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:46,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:46,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:46,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089540237] [2023-08-27 03:47:46,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089540237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:46,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:46,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 03:47:46,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441924511] [2023-08-27 03:47:46,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:46,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:46,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:46,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:46,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:47:46,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 255 transitions, 4648 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:46,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:46,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:47:46,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:49,439 INFO L124 PetriNetUnfolderBase]: 14301/21482 cut-off events. [2023-08-27 03:47:49,439 INFO L125 PetriNetUnfolderBase]: For 382018/390705 co-relation queries the response was YES. [2023-08-27 03:47:49,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149583 conditions, 21482 events. 14301/21482 cut-off events. For 382018/390705 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 151945 event pairs, 652 based on Foata normal form. 3398/23749 useless extension candidates. Maximal degree in co-relation 149527. Up to 10296 conditions per place. [2023-08-27 03:47:49,610 INFO L140 encePairwiseOnDemand]: 260/267 looper letters, 615 selfloop transitions, 28 changer transitions 4/676 dead transitions. [2023-08-27 03:47:49,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 676 transitions, 13542 flow [2023-08-27 03:47:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 03:47:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 03:47:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1141 transitions. [2023-08-27 03:47:49,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47482313774448603 [2023-08-27 03:47:49,614 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1141 transitions. [2023-08-27 03:47:49,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1141 transitions. [2023-08-27 03:47:49,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:49,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1141 transitions. [2023-08-27 03:47:49,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.77777777777777) internal successors, (1141), 9 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:49,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:49,618 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:49,618 INFO L175 Difference]: Start difference. First operand has 112 places, 255 transitions, 4648 flow. Second operand 9 states and 1141 transitions. [2023-08-27 03:47:49,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 676 transitions, 13542 flow [2023-08-27 03:47:51,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 676 transitions, 12984 flow, removed 95 selfloop flow, removed 6 redundant places. [2023-08-27 03:47:51,388 INFO L231 Difference]: Finished difference. Result has 117 places, 195 transitions, 3151 flow [2023-08-27 03:47:51,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3029, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3151, PETRI_PLACES=117, PETRI_TRANSITIONS=195} [2023-08-27 03:47:51,388 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 67 predicate places. [2023-08-27 03:47:51,389 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 195 transitions, 3151 flow [2023-08-27 03:47:51,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:51,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:51,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:51,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 03:47:51,389 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:51,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1643827893, now seen corresponding path program 1 times [2023-08-27 03:47:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:51,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350141079] [2023-08-27 03:47:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:51,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:51,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350141079] [2023-08-27 03:47:51,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350141079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:51,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:51,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:47:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569737870] [2023-08-27 03:47:51,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:51,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:47:51,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:51,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:47:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:47:51,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 267 [2023-08-27 03:47:51,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 195 transitions, 3151 flow. Second operand has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:51,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:51,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 267 [2023-08-27 03:47:51,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:54,051 INFO L124 PetriNetUnfolderBase]: 13731/20850 cut-off events. [2023-08-27 03:47:54,051 INFO L125 PetriNetUnfolderBase]: For 312082/317814 co-relation queries the response was YES. [2023-08-27 03:47:54,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149884 conditions, 20850 events. 13731/20850 cut-off events. For 312082/317814 co-relation queries the response was YES. Maximal size of possible extension queue 1379. Compared 149095 event pairs, 1421 based on Foata normal form. 1487/21487 useless extension candidates. Maximal degree in co-relation 149827. Up to 10097 conditions per place. [2023-08-27 03:47:54,154 INFO L140 encePairwiseOnDemand]: 258/267 looper letters, 149 selfloop transitions, 26 changer transitions 200/397 dead transitions. [2023-08-27 03:47:54,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 397 transitions, 7469 flow [2023-08-27 03:47:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 03:47:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 03:47:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-08-27 03:47:54,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4787765293383271 [2023-08-27 03:47:54,156 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-08-27 03:47:54,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-08-27 03:47:54,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:54,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-08-27 03:47:54,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:54,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:54,158 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:54,158 INFO L175 Difference]: Start difference. First operand has 117 places, 195 transitions, 3151 flow. Second operand 6 states and 767 transitions. [2023-08-27 03:47:54,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 397 transitions, 7469 flow [2023-08-27 03:47:56,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 397 transitions, 7378 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-27 03:47:56,544 INFO L231 Difference]: Finished difference. Result has 111 places, 110 transitions, 1474 flow [2023-08-27 03:47:56,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3050, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1474, PETRI_PLACES=111, PETRI_TRANSITIONS=110} [2023-08-27 03:47:56,545 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 61 predicate places. [2023-08-27 03:47:56,545 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 110 transitions, 1474 flow [2023-08-27 03:47:56,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:56,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:47:56,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:47:56,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 03:47:56,545 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:47:56,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:47:56,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2024095825, now seen corresponding path program 1 times [2023-08-27 03:47:56,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:47:56,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540715156] [2023-08-27 03:47:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:47:56,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:47:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:47:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:47:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:47:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540715156] [2023-08-27 03:47:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540715156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:47:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:47:56,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 03:47:56,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073312124] [2023-08-27 03:47:56,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:47:56,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 03:47:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:47:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 03:47:56,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-08-27 03:47:56,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:47:56,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 1474 flow. Second operand has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:56,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:47:56,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:47:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:47:58,722 INFO L124 PetriNetUnfolderBase]: 10321/16018 cut-off events. [2023-08-27 03:47:58,722 INFO L125 PetriNetUnfolderBase]: For 220949/225935 co-relation queries the response was YES. [2023-08-27 03:47:58,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107201 conditions, 16018 events. 10321/16018 cut-off events. For 220949/225935 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 116807 event pairs, 550 based on Foata normal form. 1306/16632 useless extension candidates. Maximal degree in co-relation 107144. Up to 7530 conditions per place. [2023-08-27 03:47:58,804 INFO L140 encePairwiseOnDemand]: 260/267 looper letters, 167 selfloop transitions, 29 changer transitions 160/366 dead transitions. [2023-08-27 03:47:58,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 366 transitions, 5881 flow [2023-08-27 03:47:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-27 03:47:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-27 03:47:58,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1355 transitions. [2023-08-27 03:47:58,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4613551242764726 [2023-08-27 03:47:58,807 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1355 transitions. [2023-08-27 03:47:58,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1355 transitions. [2023-08-27 03:47:58,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:47:58,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1355 transitions. [2023-08-27 03:47:58,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 123.18181818181819) internal successors, (1355), 11 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:58,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:58,810 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:47:58,811 INFO L175 Difference]: Start difference. First operand has 111 places, 110 transitions, 1474 flow. Second operand 11 states and 1355 transitions. [2023-08-27 03:47:58,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 366 transitions, 5881 flow [2023-08-27 03:48:00,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 366 transitions, 5256 flow, removed 68 selfloop flow, removed 13 redundant places. [2023-08-27 03:48:00,397 INFO L231 Difference]: Finished difference. Result has 111 places, 84 transitions, 926 flow [2023-08-27 03:48:00,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1232, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=926, PETRI_PLACES=111, PETRI_TRANSITIONS=84} [2023-08-27 03:48:00,398 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 61 predicate places. [2023-08-27 03:48:00,398 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 84 transitions, 926 flow [2023-08-27 03:48:00,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:00,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:48:00,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:48:00,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 03:48:00,398 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:48:00,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:48:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash 235710014, now seen corresponding path program 1 times [2023-08-27 03:48:00,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:48:00,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758986569] [2023-08-27 03:48:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:48:00,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:48:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:48:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:48:00,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:48:00,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758986569] [2023-08-27 03:48:00,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758986569] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:48:00,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:48:00,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:48:00,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146488251] [2023-08-27 03:48:00,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:48:00,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:48:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:48:00,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:48:00,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:48:00,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 267 [2023-08-27 03:48:00,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 84 transitions, 926 flow. Second operand has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:00,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:48:00,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 267 [2023-08-27 03:48:00,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:48:00,964 INFO L124 PetriNetUnfolderBase]: 2866/4780 cut-off events. [2023-08-27 03:48:00,964 INFO L125 PetriNetUnfolderBase]: For 38084/38196 co-relation queries the response was YES. [2023-08-27 03:48:00,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29897 conditions, 4780 events. 2866/4780 cut-off events. For 38084/38196 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 29735 event pairs, 732 based on Foata normal form. 27/4751 useless extension candidates. Maximal degree in co-relation 29856. Up to 2821 conditions per place. [2023-08-27 03:48:00,984 INFO L140 encePairwiseOnDemand]: 264/267 looper letters, 55 selfloop transitions, 1 changer transitions 102/162 dead transitions. [2023-08-27 03:48:00,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 162 transitions, 2072 flow [2023-08-27 03:48:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:48:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:48:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2023-08-27 03:48:00,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48220973782771537 [2023-08-27 03:48:00,985 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 515 transitions. [2023-08-27 03:48:00,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 515 transitions. [2023-08-27 03:48:00,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:48:00,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 515 transitions. [2023-08-27 03:48:00,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.75) internal successors, (515), 4 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 03:48:00,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:00,987 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 267.0) internal successors, (1335), 5 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:00,987 INFO L175 Difference]: Start difference. First operand has 111 places, 84 transitions, 926 flow. Second operand 4 states and 515 transitions. [2023-08-27 03:48:00,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 162 transitions, 2072 flow [2023-08-27 03:48:01,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 162 transitions, 1778 flow, removed 60 selfloop flow, removed 16 redundant places. [2023-08-27 03:48:01,067 INFO L231 Difference]: Finished difference. Result has 97 places, 52 transitions, 456 flow [2023-08-27 03:48:01,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=456, PETRI_PLACES=97, PETRI_TRANSITIONS=52} [2023-08-27 03:48:01,067 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 47 predicate places. [2023-08-27 03:48:01,067 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 52 transitions, 456 flow [2023-08-27 03:48:01,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:48:01,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:48:01,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 03:48:01,068 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:48:01,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:48:01,068 INFO L85 PathProgramCache]: Analyzing trace with hash 206498894, now seen corresponding path program 2 times [2023-08-27 03:48:01,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:48:01,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841171134] [2023-08-27 03:48:01,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:48:01,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:48:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:48:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:48:01,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:48:01,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841171134] [2023-08-27 03:48:01,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841171134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:48:01,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:48:01,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:48:01,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744508900] [2023-08-27 03:48:01,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:48:01,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:48:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:48:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:48:01,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:48:01,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-27 03:48:01,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 52 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:48:01,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-27 03:48:01,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:48:01,949 INFO L124 PetriNetUnfolderBase]: 493/881 cut-off events. [2023-08-27 03:48:01,949 INFO L125 PetriNetUnfolderBase]: For 4392/4398 co-relation queries the response was YES. [2023-08-27 03:48:01,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4612 conditions, 881 events. 493/881 cut-off events. For 4392/4398 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3917 event pairs, 76 based on Foata normal form. 1/876 useless extension candidates. Maximal degree in co-relation 4577. Up to 523 conditions per place. [2023-08-27 03:48:01,952 INFO L140 encePairwiseOnDemand]: 261/267 looper letters, 57 selfloop transitions, 13 changer transitions 9/82 dead transitions. [2023-08-27 03:48:01,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 82 transitions, 824 flow [2023-08-27 03:48:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:48:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:48:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 599 transitions. [2023-08-27 03:48:01,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.448689138576779 [2023-08-27 03:48:01,953 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 599 transitions. [2023-08-27 03:48:01,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 599 transitions. [2023-08-27 03:48:01,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:48:01,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 599 transitions. [2023-08-27 03:48:01,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,955 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,955 INFO L175 Difference]: Start difference. First operand has 97 places, 52 transitions, 456 flow. Second operand 5 states and 599 transitions. [2023-08-27 03:48:01,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 82 transitions, 824 flow [2023-08-27 03:48:01,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 82 transitions, 677 flow, removed 40 selfloop flow, removed 25 redundant places. [2023-08-27 03:48:01,963 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 388 flow [2023-08-27 03:48:01,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2023-08-27 03:48:01,963 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 16 predicate places. [2023-08-27 03:48:01,963 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 388 flow [2023-08-27 03:48:01,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:01,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:48:01,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:48:01,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 03:48:01,963 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:48:01,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:48:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash 768693476, now seen corresponding path program 3 times [2023-08-27 03:48:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:48:01,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453984705] [2023-08-27 03:48:01,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:48:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:48:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:48:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:48:02,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:48:02,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453984705] [2023-08-27 03:48:02,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453984705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:48:02,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:48:02,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 03:48:02,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182557702] [2023-08-27 03:48:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:48:02,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 03:48:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:48:02,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 03:48:02,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-27 03:48:02,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-27 03:48:02,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 388 flow. Second operand has 7 states, 7 states have (on average 115.42857142857143) internal successors, (808), 7 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:02,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:48:02,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-27 03:48:02,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:48:02,588 INFO L124 PetriNetUnfolderBase]: 513/927 cut-off events. [2023-08-27 03:48:02,589 INFO L125 PetriNetUnfolderBase]: For 2773/2779 co-relation queries the response was YES. [2023-08-27 03:48:02,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4439 conditions, 927 events. 513/927 cut-off events. For 2773/2779 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4217 event pairs, 118 based on Foata normal form. 1/923 useless extension candidates. Maximal degree in co-relation 4413. Up to 491 conditions per place. [2023-08-27 03:48:02,591 INFO L140 encePairwiseOnDemand]: 262/267 looper letters, 52 selfloop transitions, 6 changer transitions 21/82 dead transitions. [2023-08-27 03:48:02,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 82 transitions, 709 flow [2023-08-27 03:48:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:48:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:48:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 603 transitions. [2023-08-27 03:48:02,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.451685393258427 [2023-08-27 03:48:02,592 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 603 transitions. [2023-08-27 03:48:02,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 603 transitions. [2023-08-27 03:48:02,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:48:02,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 603 transitions. [2023-08-27 03:48:02,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:02,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:02,594 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:02,594 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 388 flow. Second operand 5 states and 603 transitions. [2023-08-27 03:48:02,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 82 transitions, 709 flow [2023-08-27 03:48:02,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 82 transitions, 694 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-27 03:48:02,599 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 358 flow [2023-08-27 03:48:02,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2023-08-27 03:48:02,599 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 20 predicate places. [2023-08-27 03:48:02,599 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 358 flow [2023-08-27 03:48:02,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.42857142857143) internal successors, (808), 7 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 03:48:02,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:48:02,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:48:02,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 03:48:02,600 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 03:48:02,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:48:02,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1465882760, now seen corresponding path program 4 times [2023-08-27 03:48:02,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:48:02,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456043135] [2023-08-27 03:48:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:48:02,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:48:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:48:02,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:48:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:48:02,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:48:02,683 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:48:02,683 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (22 of 23 remaining) [2023-08-27 03:48:02,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2023-08-27 03:48:02,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2023-08-27 03:48:02,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2023-08-27 03:48:02,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2023-08-27 03:48:02,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONASSERT (17 of 23 remaining) [2023-08-27 03:48:02,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2023-08-27 03:48:02,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2023-08-27 03:48:02,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2023-08-27 03:48:02,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2023-08-27 03:48:02,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONASSERT (4 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2023-08-27 03:48:02,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2023-08-27 03:48:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 03:48:02,689 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:48:02,692 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:48:02,693 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:48:02,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:48:02 BasicIcfg [2023-08-27 03:48:02,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:48:02,761 INFO L158 Benchmark]: Toolchain (without parser) took 75895.08ms. Allocated memory was 402.7MB in the beginning and 9.5GB in the end (delta: 9.1GB). Free memory was 356.5MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.2GB. Max. memory is 16.0GB. [2023-08-27 03:48:02,761 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 402.7MB. Free memory is still 380.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:48:02,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.68ms. Allocated memory is still 402.7MB. Free memory was 356.5MB in the beginning and 333.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 03:48:02,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 402.7MB. Free memory was 333.4MB in the beginning and 330.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:48:02,762 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 402.7MB. Free memory was 330.2MB in the beginning and 328.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:48:02,762 INFO L158 Benchmark]: RCFGBuilder took 582.32ms. Allocated memory is still 402.7MB. Free memory was 328.1MB in the beginning and 287.3MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.0GB. [2023-08-27 03:48:02,762 INFO L158 Benchmark]: TraceAbstraction took 74807.61ms. Allocated memory was 402.7MB in the beginning and 9.5GB in the end (delta: 9.1GB). Free memory was 286.2MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.1GB. Max. memory is 16.0GB. [2023-08-27 03:48:02,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 402.7MB. Free memory is still 380.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 429.68ms. Allocated memory is still 402.7MB. Free memory was 356.5MB in the beginning and 333.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 402.7MB. Free memory was 333.4MB in the beginning and 330.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 402.7MB. Free memory was 330.2MB in the beginning and 328.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 582.32ms. Allocated memory is still 402.7MB. Free memory was 328.1MB in the beginning and 287.3MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.0GB. * TraceAbstraction took 74807.61ms. Allocated memory was 402.7MB in the beginning and 9.5GB in the end (delta: 9.1GB). Free memory was 286.2MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 3.1GB. 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: 4.0s, 149 PlacesBefore, 50 PlacesAfterwards, 139 TransitionsBefore, 37 TransitionsAfterwards, 4466 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 3 ChoiceCompositions, 124 TotalNumberOfCompositions, 16684 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6921, independent: 6553, independent conditional: 0, independent unconditional: 6553, dependent: 368, dependent conditional: 0, dependent unconditional: 368, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2546, independent: 2471, independent conditional: 0, independent unconditional: 2471, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6921, independent: 4082, independent conditional: 0, independent unconditional: 4082, dependent: 293, dependent conditional: 0, dependent unconditional: 293, unknown: 2546, unknown conditional: 0, unknown unconditional: 2546] , Statistics on independence cache: Total cache size (in pairs): 240, Positive cache size: 212, Positive conditional cache size: 0, Positive unconditional cache size: 212, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L727] 0 _Bool y$flush_delayed; [L728] 0 int y$mem_tmp; [L729] 0 _Bool y$r_buff0_thd0; [L730] 0 _Bool y$r_buff0_thd1; [L731] 0 _Bool y$r_buff0_thd2; [L732] 0 _Bool y$r_buff0_thd3; [L733] 0 _Bool y$r_buff0_thd4; [L734] 0 _Bool y$r_buff1_thd0; [L735] 0 _Bool y$r_buff1_thd1; [L736] 0 _Bool y$r_buff1_thd2; [L737] 0 _Bool y$r_buff1_thd3; [L738] 0 _Bool y$r_buff1_thd4; [L739] 0 _Bool y$read_delayed; [L740] 0 int *y$read_delayed_var; [L741] 0 int y$w_buff0; [L742] 0 _Bool y$w_buff0_used; [L743] 0 int y$w_buff1; [L744] 0 _Bool y$w_buff1_used; [L746] 0 int z = 0; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L851] 0 pthread_t t1081; [L852] FCALL, FORK 0 pthread_create(&t1081, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1081, ((void *)0), P0, ((void *)0))=-3, t1081={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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L853] 0 pthread_t t1082; [L854] FCALL, FORK 0 pthread_create(&t1082, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1082, ((void *)0), P1, ((void *)0))=-2, t1081={5:0}, t1082={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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L855] 0 pthread_t t1083; [L856] FCALL, FORK 0 pthread_create(&t1083, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1083, ((void *)0), P2, ((void *)0))=-1, t1081={5:0}, t1082={6:0}, t1083={7:0}, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L857] 0 pthread_t t1084; [L858] FCALL, FORK 0 pthread_create(&t1084, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1084, ((void *)0), P3, ((void *)0))=0, t1081={5:0}, t1082={6:0}, t1083={7:0}, t1084={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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L787] 3 y$w_buff1 = y$w_buff0 [L788] 3 y$w_buff0 = 2 [L789] 3 y$w_buff1_used = y$w_buff0_used [L790] 3 y$w_buff0_used = (_Bool)1 [L791] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L791] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L792] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L793] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L794] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L795] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L796] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L797] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L800] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L817] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L820] 4 a = 1 [L823] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L826] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L829] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L830] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L831] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L832] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L833] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L770] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L773] 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) [L774] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L775] 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 [L776] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L777] 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, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L803] 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) [L804] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L805] 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 [L806] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L807] 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 [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L810] EXPR 3 __unbuffered_cnt + 1 [L810] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 3 return 0; [L760] EXPR 1 __unbuffered_cnt + 1 [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L780] EXPR 2 __unbuffered_cnt + 1 [L780] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L782] 2 return 0; [L836] EXPR 4 __unbuffered_cnt + 1 [L836] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L838] 4 return 0; [L860] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L862] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L862] RET 0 assume_abort_if_not(main$tmp_guard0) [L864] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L865] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L866] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L867] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L868] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1081={5:0}, t1082={6:0}, t1083={7:0}, t1084={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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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] [L871] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L872] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L873] 0 y$flush_delayed = weak$$choice2 [L874] 0 y$mem_tmp = y [L875] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L876] 0 y$w_buff0 = weak$$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$w_buff0)) [L877] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L878] 0 y$w_buff0_used = weak$$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)) [L879] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L880] 0 y$r_buff0_thd0 = weak$$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)) [L881] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L883] 0 y = y$flush_delayed ? y$mem_tmp : y [L884] 0 y$flush_delayed = (_Bool)0 [L886] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix040_tso.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\read(__PRETTY_FUNCTION__)={49:50}, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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: 760]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 780]: 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: 810]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 858]: 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: 856]: 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: 854]: 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: 852]: 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 9 procedures, 187 locations, 23 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: 74.7s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 64.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1081 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1081 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3275 IncrementalHoareTripleChecker+Invalid, 3475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 49 mSDtfsCounter, 3275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4648occurred in iteration=21, InterpolantAutomatonStates: 134, 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, 5.7s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 426 ConstructedInterpolants, 0 QuantifiedInterpolants, 4757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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 03:48:02,784 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...