/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/weaver/chl-simpl-str-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:31:35,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:31:35,269 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 06:31:35,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:31:35,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:31:35,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:31:35,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:31:35,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:31:35,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:31:35,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:31:35,313 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:31:35,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:31:35,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:31:35,315 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:31:35,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:31:35,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:31:35,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:31:35,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:31:35,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:31:35,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:31:35,316 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:31:35,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:31:35,317 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:31:35,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:31:35,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:31:35,318 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:31:35,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:31:35,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:31:35,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:31:35,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:31:35,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:31:35,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:31:35,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:31:35,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:31:35,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:31:35,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:31:35,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:31:35,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:31:35,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:31:35,634 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:31:35,635 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:31:35,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-27 06:31:36,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:31:36,933 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:31:36,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-27 06:31:36,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935ee228b/2731d46f92014a01b1fb27703729441a/FLAG174d738f5 [2023-08-27 06:31:36,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935ee228b/2731d46f92014a01b1fb27703729441a [2023-08-27 06:31:36,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:31:36,954 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:31:36,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:31:36,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:31:36,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:31:36,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:31:36" (1/1) ... [2023-08-27 06:31:36,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2427a1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:36, skipping insertion in model container [2023-08-27 06:31:36,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:31:36" (1/1) ... [2023-08-27 06:31:36,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:31:37,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:31:37,171 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:31:37,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:31:37,220 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:31:37,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37 WrapperNode [2023-08-27 06:31:37,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:31:37,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:31:37,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:31:37,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:31:37,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,276 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 213 [2023-08-27 06:31:37,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:31:37,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:31:37,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:31:37,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:31:37,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:31:37,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:31:37,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:31:37,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:31:37,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (1/1) ... [2023-08-27 06:31:37,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:31:37,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:31:37,336 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 06:31:37,345 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 06:31:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:31:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:31:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:31:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:31:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:31:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 06:31:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:31:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:31:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:31:37,380 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 06:31:37,467 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:31:37,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:31:37,852 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:31:37,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:31:37,861 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 06:31:37,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:31:37 BoogieIcfgContainer [2023-08-27 06:31:37,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:31:37,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:31:37,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:31:37,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:31:37,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:31:36" (1/3) ... [2023-08-27 06:31:37,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e64b4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:31:37, skipping insertion in model container [2023-08-27 06:31:37,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:31:37" (2/3) ... [2023-08-27 06:31:37,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e64b4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:31:37, skipping insertion in model container [2023-08-27 06:31:37,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:31:37" (3/3) ... [2023-08-27 06:31:37,871 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2023-08-27 06:31:37,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:31:37,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-27 06:31:37,886 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:31:38,016 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 06:31:38,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 262 transitions, 548 flow [2023-08-27 06:31:38,249 INFO L124 PetriNetUnfolderBase]: 19/259 cut-off events. [2023-08-27 06:31:38,250 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:31:38,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 259 events. 19/259 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 670 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-08-27 06:31:38,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 262 transitions, 548 flow [2023-08-27 06:31:38,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 248 transitions, 514 flow [2023-08-27 06:31:38,273 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:31:38,288 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 248 transitions, 514 flow [2023-08-27 06:31:38,291 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 248 transitions, 514 flow [2023-08-27 06:31:38,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 248 transitions, 514 flow [2023-08-27 06:31:38,354 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2023-08-27 06:31:38,354 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:31:38,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 248 events. 19/248 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 671 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-08-27 06:31:38,370 INFO L119 LiptonReduction]: Number of co-enabled transitions 22848 [2023-08-27 06:31:51,246 INFO L134 LiptonReduction]: Checked pairs total: 22521 [2023-08-27 06:31:51,247 INFO L136 LiptonReduction]: Total number of compositions: 326 [2023-08-27 06:31:51,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:31:51,264 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;@6b72b6e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:31:51,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-27 06:31:51,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:31:51,267 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 06:31:51,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:31:51,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:51,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:31:51,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:51,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1101286, now seen corresponding path program 1 times [2023-08-27 06:31:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023566585] [2023-08-27 06:31:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:51,513 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 06:31:51,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023566585] [2023-08-27 06:31:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023566585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:51,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:51,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:51,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969868949] [2023-08-27 06:31:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:51,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:51,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:51,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:51,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:51,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:51,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:51,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:51,830 INFO L124 PetriNetUnfolderBase]: 777/1212 cut-off events. [2023-08-27 06:31:51,831 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-27 06:31:51,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2528 conditions, 1212 events. 777/1212 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 5479 event pairs, 777 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 2116. Up to 1212 conditions per place. [2023-08-27 06:31:51,839 INFO L140 encePairwiseOnDemand]: 579/588 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 06:31:51,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 122 flow [2023-08-27 06:31:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2023-08-27 06:31:51,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4342403628117914 [2023-08-27 06:31:51,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2023-08-27 06:31:51,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2023-08-27 06:31:51,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:51,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2023-08-27 06:31:51,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,877 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 86 flow. Second operand 3 states and 766 transitions. [2023-08-27 06:31:51,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 122 flow [2023-08-27 06:31:51,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 06:31:51,885 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 60 flow [2023-08-27 06:31:51,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-27 06:31:51,889 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-08-27 06:31:51,889 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 60 flow [2023-08-27 06:31:51,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:51,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:31:51,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:31:51,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:51,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1101300, now seen corresponding path program 1 times [2023-08-27 06:31:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132785325] [2023-08-27 06:31:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:51,972 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 06:31:51,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:51,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132785325] [2023-08-27 06:31:51,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132785325] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:51,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:51,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:51,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775958172] [2023-08-27 06:31:51,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:51,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:51,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:51,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:51,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:51,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:51,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:51,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:51,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:51,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:52,121 INFO L124 PetriNetUnfolderBase]: 493/788 cut-off events. [2023-08-27 06:31:52,122 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-27 06:31:52,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 788 events. 493/788 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 3307 event pairs, 493 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 1595. Up to 788 conditions per place. [2023-08-27 06:31:52,126 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 06:31:52,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 104 flow [2023-08-27 06:31:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 758 transitions. [2023-08-27 06:31:52,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42970521541950113 [2023-08-27 06:31:52,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 758 transitions. [2023-08-27 06:31:52,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 758 transitions. [2023-08-27 06:31:52,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:52,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 758 transitions. [2023-08-27 06:31:52,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,135 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 60 flow. Second operand 3 states and 758 transitions. [2023-08-27 06:31:52,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 104 flow [2023-08-27 06:31:52,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:52,136 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 57 flow [2023-08-27 06:31:52,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-27 06:31:52,137 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 06:31:52,137 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 57 flow [2023-08-27 06:31:52,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:52,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:31:52,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:31:52,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:52,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1101314, now seen corresponding path program 1 times [2023-08-27 06:31:52,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:52,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168224943] [2023-08-27 06:31:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:52,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:52,281 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 06:31:52,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:52,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168224943] [2023-08-27 06:31:52,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168224943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:52,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:52,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649858856] [2023-08-27 06:31:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:52,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:52,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:52,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:52,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:52,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:52,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:52,391 INFO L124 PetriNetUnfolderBase]: 315/518 cut-off events. [2023-08-27 06:31:52,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:31:52,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 518 events. 315/518 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1983 event pairs, 315 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 1050. Up to 518 conditions per place. [2023-08-27 06:31:52,394 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 06:31:52,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 97 flow [2023-08-27 06:31:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 756 transitions. [2023-08-27 06:31:52,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2023-08-27 06:31:52,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 756 transitions. [2023-08-27 06:31:52,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 756 transitions. [2023-08-27 06:31:52,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:52,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 756 transitions. [2023-08-27 06:31:52,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,403 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 3 states and 756 transitions. [2023-08-27 06:31:52,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 97 flow [2023-08-27 06:31:52,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:52,405 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 54 flow [2023-08-27 06:31:52,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-27 06:31:52,406 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-27 06:31:52,406 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 54 flow [2023-08-27 06:31:52,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:52,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:31:52,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:31:52,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:52,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:52,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1101315, now seen corresponding path program 1 times [2023-08-27 06:31:52,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:52,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689994401] [2023-08-27 06:31:52,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:52,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:52,483 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 06:31:52,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689994401] [2023-08-27 06:31:52,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689994401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:52,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:52,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488256473] [2023-08-27 06:31:52,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:52,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:52,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:52,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:52,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:52,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:52,557 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 06:31:52,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:31:52,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 300 events. 173/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 999 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 609. Up to 300 conditions per place. [2023-08-27 06:31:52,558 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 06:31:52,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 90 flow [2023-08-27 06:31:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2023-08-27 06:31:52,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427437641723356 [2023-08-27 06:31:52,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2023-08-27 06:31:52,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2023-08-27 06:31:52,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:52,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2023-08-27 06:31:52,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,567 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 54 flow. Second operand 3 states and 754 transitions. [2023-08-27 06:31:52,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 90 flow [2023-08-27 06:31:52,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:52,568 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 51 flow [2023-08-27 06:31:52,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-27 06:31:52,569 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-27 06:31:52,569 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 51 flow [2023-08-27 06:31:52,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:52,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:31:52,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:31:52,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:52,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:52,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1058297481, now seen corresponding path program 1 times [2023-08-27 06:31:52,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:52,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765712936] [2023-08-27 06:31:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:52,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:52,602 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 06:31:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:52,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765712936] [2023-08-27 06:31:52,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765712936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:52,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:52,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:52,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726038633] [2023-08-27 06:31:52,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:52,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:52,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:52,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:52,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:52,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:52,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:52,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:52,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:52,663 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 06:31:52,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:31:52,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 172 events. 93/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 470 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 351. Up to 172 conditions per place. [2023-08-27 06:31:52,664 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 06:31:52,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 83 flow [2023-08-27 06:31:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2023-08-27 06:31:52,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42630385487528344 [2023-08-27 06:31:52,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2023-08-27 06:31:52,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2023-08-27 06:31:52,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:52,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2023-08-27 06:31:52,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,675 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 51 flow. Second operand 3 states and 752 transitions. [2023-08-27 06:31:52,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 83 flow [2023-08-27 06:31:52,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:52,676 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 48 flow [2023-08-27 06:31:52,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-27 06:31:52,677 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 06:31:52,677 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 48 flow [2023-08-27 06:31:52,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:52,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:31:52,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:31:52,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:52,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:52,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1058297434, now seen corresponding path program 1 times [2023-08-27 06:31:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:52,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278424175] [2023-08-27 06:31:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:52,706 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 06:31:52,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:52,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278424175] [2023-08-27 06:31:52,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278424175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:52,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:52,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:31:52,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132352315] [2023-08-27 06:31:52,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:52,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:31:52,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:52,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:31:52,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:31:52,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 588 [2023-08-27 06:31:52,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:52,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 588 [2023-08-27 06:31:52,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:52,751 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 06:31:52,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:31:52,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 80 events. 37/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place. [2023-08-27 06:31:52,752 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 06:31:52,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 76 flow [2023-08-27 06:31:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:31:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:31:52,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2023-08-27 06:31:52,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517006802721086 [2023-08-27 06:31:52,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2023-08-27 06:31:52,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2023-08-27 06:31:52,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:52,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2023-08-27 06:31:52,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,760 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 48 flow. Second operand 3 states and 750 transitions. [2023-08-27 06:31:52,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 76 flow [2023-08-27 06:31:52,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:52,762 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 45 flow [2023-08-27 06:31:52,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-27 06:31:52,764 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -17 predicate places. [2023-08-27 06:31:52,764 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 45 flow [2023-08-27 06:31:52,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:52,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:52,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:52,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:31:52,766 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:52,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1092299807, now seen corresponding path program 1 times [2023-08-27 06:31:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:52,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510339268] [2023-08-27 06:31:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:53,617 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 06:31:53,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:53,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510339268] [2023-08-27 06:31:53,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510339268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:53,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260267366] [2023-08-27 06:31:53,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:53,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:53,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:53,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:53,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:53,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:53,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:53,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:53,788 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 06:31:53,788 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 06:31:53,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 334 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 218. Up to 48 conditions per place. [2023-08-27 06:31:53,789 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-27 06:31:53,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 199 flow [2023-08-27 06:31:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1311 transitions. [2023-08-27 06:31:53,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3715986394557823 [2023-08-27 06:31:53,793 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1311 transitions. [2023-08-27 06:31:53,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1311 transitions. [2023-08-27 06:31:53,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:53,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1311 transitions. [2023-08-27 06:31:53,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:53,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:53,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:53,801 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 45 flow. Second operand 6 states and 1311 transitions. [2023-08-27 06:31:53,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 199 flow [2023-08-27 06:31:53,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:53,802 INFO L231 Difference]: Finished difference. Result has 33 places, 18 transitions, 63 flow [2023-08-27 06:31:53,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=63, PETRI_PLACES=33, PETRI_TRANSITIONS=18} [2023-08-27 06:31:53,803 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-27 06:31:53,803 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 18 transitions, 63 flow [2023-08-27 06:31:53,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:53,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:53,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:53,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:31:53,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:53,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1524613921, now seen corresponding path program 2 times [2023-08-27 06:31:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:53,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181662600] [2023-08-27 06:31:53,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:54,610 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 06:31:54,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:54,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181662600] [2023-08-27 06:31:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181662600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:54,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:54,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:54,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575888397] [2023-08-27 06:31:54,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:54,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:54,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:54,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:54,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:54,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 18 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:54,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:54,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:54,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:54,806 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 06:31:54,807 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-27 06:31:54,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 405 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 285. Up to 45 conditions per place. [2023-08-27 06:31:54,807 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-27 06:31:54,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 241 flow [2023-08-27 06:31:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1312 transitions. [2023-08-27 06:31:54,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37188208616780044 [2023-08-27 06:31:54,812 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1312 transitions. [2023-08-27 06:31:54,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1312 transitions. [2023-08-27 06:31:54,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:54,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1312 transitions. [2023-08-27 06:31:54,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.66666666666666) internal successors, (1312), 6 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:54,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:54,820 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:54,820 INFO L175 Difference]: Start difference. First operand has 33 places, 18 transitions, 63 flow. Second operand 6 states and 1312 transitions. [2023-08-27 06:31:54,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 241 flow [2023-08-27 06:31:54,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 237 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 06:31:54,822 INFO L231 Difference]: Finished difference. Result has 40 places, 21 transitions, 101 flow [2023-08-27 06:31:54,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=40, PETRI_TRANSITIONS=21} [2023-08-27 06:31:54,824 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -4 predicate places. [2023-08-27 06:31:54,824 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 21 transitions, 101 flow [2023-08-27 06:31:54,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:54,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:54,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:54,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:31:54,825 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:54,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:54,825 INFO L85 PathProgramCache]: Analyzing trace with hash 503896465, now seen corresponding path program 3 times [2023-08-27 06:31:54,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:54,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13309589] [2023-08-27 06:31:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:54,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:55,487 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 06:31:55,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:55,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13309589] [2023-08-27 06:31:55,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13309589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:55,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:55,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327412053] [2023-08-27 06:31:55,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:55,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:55,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:55,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 21 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:55,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:55,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:55,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:55,646 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2023-08-27 06:31:55,646 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-08-27 06:31:55,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 98 events. 32/98 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 304 event pairs, 2 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 306. Up to 46 conditions per place. [2023-08-27 06:31:55,647 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-08-27 06:31:55,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 256 flow [2023-08-27 06:31:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1310 transitions. [2023-08-27 06:31:55,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3713151927437642 [2023-08-27 06:31:55,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1310 transitions. [2023-08-27 06:31:55,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1310 transitions. [2023-08-27 06:31:55,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:55,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1310 transitions. [2023-08-27 06:31:55,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:55,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:55,659 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:55,660 INFO L175 Difference]: Start difference. First operand has 40 places, 21 transitions, 101 flow. Second operand 6 states and 1310 transitions. [2023-08-27 06:31:55,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 256 flow [2023-08-27 06:31:55,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 245 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 06:31:55,663 INFO L231 Difference]: Finished difference. Result has 44 places, 20 transitions, 108 flow [2023-08-27 06:31:55,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=44, PETRI_TRANSITIONS=20} [2023-08-27 06:31:55,664 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-08-27 06:31:55,664 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 20 transitions, 108 flow [2023-08-27 06:31:55,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:55,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:55,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:55,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:31:55,665 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:55,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:55,665 INFO L85 PathProgramCache]: Analyzing trace with hash 258595469, now seen corresponding path program 4 times [2023-08-27 06:31:55,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:55,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52930931] [2023-08-27 06:31:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:56,289 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 06:31:56,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52930931] [2023-08-27 06:31:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52930931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:56,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:56,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:56,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925395086] [2023-08-27 06:31:56,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:56,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:56,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:56,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:56,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:56,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 20 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:56,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:56,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:56,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:56,420 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2023-08-27 06:31:56,420 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 06:31:56,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 54 events. 16/54 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 196. Up to 20 conditions per place. [2023-08-27 06:31:56,421 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 18 selfloop transitions, 5 changer transitions 10/33 dead transitions. [2023-08-27 06:31:56,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 33 transitions, 205 flow [2023-08-27 06:31:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1299 transitions. [2023-08-27 06:31:56,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3681972789115646 [2023-08-27 06:31:56,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1299 transitions. [2023-08-27 06:31:56,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1299 transitions. [2023-08-27 06:31:56,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:56,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1299 transitions. [2023-08-27 06:31:56,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:56,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:56,434 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:56,434 INFO L175 Difference]: Start difference. First operand has 44 places, 20 transitions, 108 flow. Second operand 6 states and 1299 transitions. [2023-08-27 06:31:56,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 33 transitions, 205 flow [2023-08-27 06:31:56,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 184 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-27 06:31:56,436 INFO L231 Difference]: Finished difference. Result has 42 places, 18 transitions, 84 flow [2023-08-27 06:31:56,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=18} [2023-08-27 06:31:56,438 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-08-27 06:31:56,438 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 18 transitions, 84 flow [2023-08-27 06:31:56,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:56,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:56,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:31:56,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:56,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2136063727, now seen corresponding path program 5 times [2023-08-27 06:31:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592521303] [2023-08-27 06:31:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:57,102 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 06:31:57,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:57,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592521303] [2023-08-27 06:31:57,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592521303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:57,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:57,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:57,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276548281] [2023-08-27 06:31:57,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:57,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:57,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:57,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 18 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:57,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:57,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:57,285 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-27 06:31:57,285 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-27 06:31:57,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 40 events. 8/40 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 136. Up to 19 conditions per place. [2023-08-27 06:31:57,286 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-27 06:31:57,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 180 flow [2023-08-27 06:31:57,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2023-08-27 06:31:57,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36763038548752835 [2023-08-27 06:31:57,290 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1297 transitions. [2023-08-27 06:31:57,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1297 transitions. [2023-08-27 06:31:57,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:57,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1297 transitions. [2023-08-27 06:31:57,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,298 INFO L175 Difference]: Start difference. First operand has 42 places, 18 transitions, 84 flow. Second operand 6 states and 1297 transitions. [2023-08-27 06:31:57,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 180 flow [2023-08-27 06:31:57,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 150 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 06:31:57,299 INFO L231 Difference]: Finished difference. Result has 39 places, 16 transitions, 62 flow [2023-08-27 06:31:57,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=62, PETRI_PLACES=39, PETRI_TRANSITIONS=16} [2023-08-27 06:31:57,300 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -5 predicate places. [2023-08-27 06:31:57,300 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 16 transitions, 62 flow [2023-08-27 06:31:57,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:31:57,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:57,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:31:57,301 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:31:57,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:31:57,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1737856613, now seen corresponding path program 6 times [2023-08-27 06:31:57,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:31:57,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725356416] [2023-08-27 06:31:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:31:57,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:31:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:31:57,817 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 06:31:57,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:31:57,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725356416] [2023-08-27 06:31:57,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725356416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:31:57,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:31:57,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:31:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48285048] [2023-08-27 06:31:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:31:57,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:31:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:31:57,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:31:57,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:31:57,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 588 [2023-08-27 06:31:57,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 16 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:31:57,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 588 [2023-08-27 06:31:57,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:31:57,919 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-27 06:31:57,919 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:31:57,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 68. Up to 8 conditions per place. [2023-08-27 06:31:57,919 INFO L140 encePairwiseOnDemand]: 583/588 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 06:31:57,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 18 transitions, 100 flow [2023-08-27 06:31:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:31:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:31:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1285 transitions. [2023-08-27 06:31:57,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36422902494331066 [2023-08-27 06:31:57,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1285 transitions. [2023-08-27 06:31:57,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1285 transitions. [2023-08-27 06:31:57,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:31:57,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1285 transitions. [2023-08-27 06:31:57,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.16666666666666) internal successors, (1285), 6 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 588.0) internal successors, (4116), 7 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,931 INFO L175 Difference]: Start difference. First operand has 39 places, 16 transitions, 62 flow. Second operand 6 states and 1285 transitions. [2023-08-27 06:31:57,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 18 transitions, 100 flow [2023-08-27 06:31:57,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 18 transitions, 88 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 06:31:57,932 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-27 06:31:57,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-27 06:31:57,932 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2023-08-27 06:31:57,933 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-27 06:31:57,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:31:57,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 40 remaining) [2023-08-27 06:31:57,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 40 remaining) [2023-08-27 06:31:57,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 40 remaining) [2023-08-27 06:31:57,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (21 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-08-27 06:31:57,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 40 remaining) [2023-08-27 06:31:57,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 40 remaining) [2023-08-27 06:31:57,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 40 remaining) [2023-08-27 06:31:57,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:31:57,940 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-08-27 06:31:57,943 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:31:57,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:31:57,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:31:57 BasicIcfg [2023-08-27 06:31:57,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:31:57,946 INFO L158 Benchmark]: Toolchain (without parser) took 20992.39ms. Allocated memory was 392.2MB in the beginning and 639.6MB in the end (delta: 247.5MB). Free memory was 368.4MB in the beginning and 399.2MB in the end (delta: -30.8MB). Peak memory consumption was 219.3MB. Max. memory is 16.0GB. [2023-08-27 06:31:57,947 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 392.2MB. Free memory is still 368.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:31:57,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.25ms. Allocated memory is still 392.2MB. Free memory was 368.4MB in the beginning and 357.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 06:31:57,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.13ms. Allocated memory is still 392.2MB. Free memory was 357.0MB in the beginning and 354.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:31:57,947 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 392.2MB. Free memory was 354.9MB in the beginning and 353.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:31:57,947 INFO L158 Benchmark]: RCFGBuilder took 553.83ms. Allocated memory is still 392.2MB. Free memory was 353.2MB in the beginning and 331.8MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 06:31:57,948 INFO L158 Benchmark]: TraceAbstraction took 20081.14ms. Allocated memory was 392.2MB in the beginning and 639.6MB in the end (delta: 247.5MB). Free memory was 331.2MB in the beginning and 399.2MB in the end (delta: -68.0MB). Peak memory consumption was 181.5MB. Max. memory is 16.0GB. [2023-08-27 06:31:57,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 392.2MB. Free memory is still 368.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 266.25ms. Allocated memory is still 392.2MB. Free memory was 368.4MB in the beginning and 357.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.13ms. Allocated memory is still 392.2MB. Free memory was 357.0MB in the beginning and 354.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 392.2MB. Free memory was 354.9MB in the beginning and 353.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 553.83ms. Allocated memory is still 392.2MB. Free memory was 353.2MB in the beginning and 331.8MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 20081.14ms. Allocated memory was 392.2MB in the beginning and 639.6MB in the end (delta: 247.5MB). Free memory was 331.2MB in the beginning and 399.2MB in the end (delta: -68.0MB). Peak memory consumption was 181.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 239 PlacesBefore, 44 PlacesAfterwards, 248 TransitionsBefore, 34 TransitionsAfterwards, 22848 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 190 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 60 ConcurrentYvCompositions, 19 ChoiceCompositions, 326 TotalNumberOfCompositions, 22521 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22521, independent: 22521, independent conditional: 0, independent unconditional: 22521, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13769, independent: 13769, independent conditional: 0, independent unconditional: 13769, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22521, independent: 8752, independent conditional: 0, independent unconditional: 8752, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 13769, unknown conditional: 0, unknown unconditional: 13769] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 400 locations, 40 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: 19.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 0 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=9, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 06:31:57,970 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...