/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:47:41,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:47:41,236 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 12:47:41,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:47:41,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:47:41,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:47:41,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:47:41,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:47:41,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:47:41,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:47:41,280 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:47:41,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:47:41,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:47:41,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:47:41,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:47:41,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:47:41,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:47:41,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:47:41,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:47:41,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:47:41,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:47:41,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:47:41,287 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:47:41,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:47:41,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:47:41,288 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:47:41,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:47:41,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:47:41,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:47:41,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:47:41,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:47:41,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:47:41,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:47:41,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:47:41,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:47:41,290 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:47:41,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:47:41,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:47:41,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:47:41,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:47:41,604 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:47:41,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-27 12:47:42,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:47:43,090 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:47:43,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-08-27 12:47:43,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95f25cbe/4bec336519064ed69cc9bda3efa637e9/FLAG6dd342d06 [2023-08-27 12:47:43,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e95f25cbe/4bec336519064ed69cc9bda3efa637e9 [2023-08-27 12:47:43,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:47:43,121 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:47:43,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:47:43,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:47:43,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:47:43,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d6e29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43, skipping insertion in model container [2023-08-27 12:47:43,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,154 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:47:43,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:47:43,305 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:47:43,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:47:43,352 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:47:43,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43 WrapperNode [2023-08-27 12:47:43,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:47:43,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:47:43,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:47:43,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:47:43,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,405 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 162 [2023-08-27 12:47:43,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:47:43,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:47:43,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:47:43,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:47:43,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:47:43,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:47:43,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:47:43,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:47:43,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (1/1) ... [2023-08-27 12:47:43,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:47:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:47:43,486 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 12:47:43,517 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 12:47:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:47:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 12:47:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 12:47:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 12:47:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 12:47:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:47:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:47:43,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:47:43,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:47:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:47:43,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:47:43,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:47:43,529 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 12:47:43,644 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:47:43,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:47:43,925 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:47:43,941 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:47:43,941 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:47:43,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:47:43 BoogieIcfgContainer [2023-08-27 12:47:43,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:47:43,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:47:43,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:47:43,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:47:43,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:47:43" (1/3) ... [2023-08-27 12:47:43,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1250ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:47:43, skipping insertion in model container [2023-08-27 12:47:43,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:47:43" (2/3) ... [2023-08-27 12:47:43,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1250ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:47:43, skipping insertion in model container [2023-08-27 12:47:43,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:47:43" (3/3) ... [2023-08-27 12:47:43,951 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-08-27 12:47:43,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:47:43,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-27 12:47:43,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:47:44,056 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 12:47:44,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 202 transitions, 420 flow [2023-08-27 12:47:44,163 INFO L124 PetriNetUnfolderBase]: 17/200 cut-off events. [2023-08-27 12:47:44,164 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 12:47:44,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 200 events. 17/200 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 432 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place. [2023-08-27 12:47:44,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 202 transitions, 420 flow [2023-08-27 12:47:44,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 191 transitions, 394 flow [2023-08-27 12:47:44,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:47:44,193 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 191 transitions, 394 flow [2023-08-27 12:47:44,195 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 191 transitions, 394 flow [2023-08-27 12:47:44,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 191 transitions, 394 flow [2023-08-27 12:47:44,231 INFO L124 PetriNetUnfolderBase]: 17/191 cut-off events. [2023-08-27 12:47:44,231 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 12:47:44,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 191 events. 17/191 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 431 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place. [2023-08-27 12:47:44,238 INFO L119 LiptonReduction]: Number of co-enabled transitions 9272 [2023-08-27 12:47:54,246 INFO L134 LiptonReduction]: Checked pairs total: 8988 [2023-08-27 12:47:54,247 INFO L136 LiptonReduction]: Total number of compositions: 260 [2023-08-27 12:47:54,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:47:54,267 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;@328e4fcc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:47:54,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-08-27 12:47:54,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:47:54,270 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 12:47:54,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:54,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:54,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:54,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:54,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:54,276 INFO L85 PathProgramCache]: Analyzing trace with hash 862081, now seen corresponding path program 1 times [2023-08-27 12:47:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866655305] [2023-08-27 12:47:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:47:54,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:54,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866655305] [2023-08-27 12:47:54,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866655305] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:54,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:54,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:54,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964883412] [2023-08-27 12:47:54,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:54,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 12:47:54,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:54,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 12:47:54,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 12:47:54,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 462 [2023-08-27 12:47:54,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:54,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 462 [2023-08-27 12:47:54,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:54,607 INFO L124 PetriNetUnfolderBase]: 105/204 cut-off events. [2023-08-27 12:47:54,607 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 12:47:54,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 204 events. 105/204 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 800 event pairs, 105 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 368. Up to 205 conditions per place. [2023-08-27 12:47:54,613 INFO L140 encePairwiseOnDemand]: 458/462 looper letters, 19 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-27 12:47:54,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 88 flow [2023-08-27 12:47:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 12:47:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 12:47:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 403 transitions. [2023-08-27 12:47:54,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43614718614718617 [2023-08-27 12:47:54,636 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 403 transitions. [2023-08-27 12:47:54,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 403 transitions. [2023-08-27 12:47:54,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:54,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 403 transitions. [2023-08-27 12:47:54,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 201.5) internal successors, (403), 2 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,654 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,656 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 58 flow. Second operand 2 states and 403 transitions. [2023-08-27 12:47:54,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 88 flow [2023-08-27 12:47:54,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 12:47:54,660 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 42 flow [2023-08-27 12:47:54,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-08-27 12:47:54,666 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -7 predicate places. [2023-08-27 12:47:54,667 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 42 flow [2023-08-27 12:47:54,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:54,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:54,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:47:54,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:54,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash 862080, now seen corresponding path program 1 times [2023-08-27 12:47:54,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:54,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112120159] [2023-08-27 12:47:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:54,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:54,764 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 12:47:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112120159] [2023-08-27 12:47:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112120159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960546594] [2023-08-27 12:47:54,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:47:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:47:54,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:47:54,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 462 [2023-08-27 12:47:54,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:54,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 462 [2023-08-27 12:47:54,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:54,830 INFO L124 PetriNetUnfolderBase]: 72/145 cut-off events. [2023-08-27 12:47:54,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:54,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 145 events. 72/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 505 event pairs, 72 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 296. Up to 145 conditions per place. [2023-08-27 12:47:54,831 INFO L140 encePairwiseOnDemand]: 459/462 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-27 12:47:54,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 72 flow [2023-08-27 12:47:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:47:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:47:54,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-08-27 12:47:54,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40764790764790765 [2023-08-27 12:47:54,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-08-27 12:47:54,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-08-27 12:47:54,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:54,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-08-27 12:47:54,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,840 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 42 flow. Second operand 3 states and 565 transitions. [2023-08-27 12:47:54,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 72 flow [2023-08-27 12:47:54,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 12:47:54,841 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 40 flow [2023-08-27 12:47:54,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-27 12:47:54,842 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -7 predicate places. [2023-08-27 12:47:54,842 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 40 flow [2023-08-27 12:47:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:54,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:47:54,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:54,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash 862122, now seen corresponding path program 1 times [2023-08-27 12:47:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:54,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119650946] [2023-08-27 12:47:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:54,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:54,900 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 12:47:54,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:54,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119650946] [2023-08-27 12:47:54,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119650946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:54,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:54,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:54,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193495445] [2023-08-27 12:47:54,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:54,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:47:54,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:54,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:47:54,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:47:54,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 462 [2023-08-27 12:47:54,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:54,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 462 [2023-08-27 12:47:54,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:54,942 INFO L124 PetriNetUnfolderBase]: 45/96 cut-off events. [2023-08-27 12:47:54,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:54,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 96 events. 45/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 280 event pairs, 45 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 198. Up to 96 conditions per place. [2023-08-27 12:47:54,943 INFO L140 encePairwiseOnDemand]: 459/462 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-08-27 12:47:54,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 15 transitions, 66 flow [2023-08-27 12:47:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:47:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:47:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2023-08-27 12:47:54,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4062049062049062 [2023-08-27 12:47:54,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2023-08-27 12:47:54,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2023-08-27 12:47:54,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:54,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2023-08-27 12:47:54,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,951 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 40 flow. Second operand 3 states and 563 transitions. [2023-08-27 12:47:54,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 15 transitions, 66 flow [2023-08-27 12:47:54,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 65 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:47:54,952 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 37 flow [2023-08-27 12:47:54,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-27 12:47:54,954 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -8 predicate places. [2023-08-27 12:47:54,954 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 37 flow [2023-08-27 12:47:54,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:54,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:54,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 12:47:54,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:54,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash 862123, now seen corresponding path program 1 times [2023-08-27 12:47:54,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:54,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717056317] [2023-08-27 12:47:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:54,997 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 12:47:54,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:54,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717056317] [2023-08-27 12:47:54,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717056317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:54,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:54,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577668159] [2023-08-27 12:47:54,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:54,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:47:54,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:47:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:47:55,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 462 [2023-08-27 12:47:55,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:55,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 462 [2023-08-27 12:47:55,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:55,031 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-27 12:47:55,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:55,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 57 events. 24/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 123 event pairs, 24 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 120. Up to 57 conditions per place. [2023-08-27 12:47:55,032 INFO L140 encePairwiseOnDemand]: 459/462 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-27 12:47:55,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 59 flow [2023-08-27 12:47:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:47:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:47:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2023-08-27 12:47:55,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2023-08-27 12:47:55,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 561 transitions. [2023-08-27 12:47:55,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 561 transitions. [2023-08-27 12:47:55,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:55,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 561 transitions. [2023-08-27 12:47:55,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,040 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 37 flow. Second operand 3 states and 561 transitions. [2023-08-27 12:47:55,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 59 flow [2023-08-27 12:47:55,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:47:55,041 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 34 flow [2023-08-27 12:47:55,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-08-27 12:47:55,042 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -9 predicate places. [2023-08-27 12:47:55,042 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 34 flow [2023-08-27 12:47:55,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:55,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 12:47:55,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:55,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 862121, now seen corresponding path program 1 times [2023-08-27 12:47:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:55,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324283859] [2023-08-27 12:47:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:47:55,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:55,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324283859] [2023-08-27 12:47:55,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324283859] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:55,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:55,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:55,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127154943] [2023-08-27 12:47:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:55,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:47:55,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:55,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:47:55,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:47:55,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 462 [2023-08-27 12:47:55,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:55,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 462 [2023-08-27 12:47:55,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:55,130 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-27 12:47:55,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:55,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 28 events. 9/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 9 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 62. Up to 28 conditions per place. [2023-08-27 12:47:55,131 INFO L140 encePairwiseOnDemand]: 459/462 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-27 12:47:55,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 52 flow [2023-08-27 12:47:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:47:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:47:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2023-08-27 12:47:55,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4033189033189033 [2023-08-27 12:47:55,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2023-08-27 12:47:55,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2023-08-27 12:47:55,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:55,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2023-08-27 12:47:55,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,140 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 34 flow. Second operand 3 states and 559 transitions. [2023-08-27 12:47:55,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 52 flow [2023-08-27 12:47:55,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 51 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:47:55,140 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 31 flow [2023-08-27 12:47:55,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2023-08-27 12:47:55,141 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -10 predicate places. [2023-08-27 12:47:55,141 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 31 flow [2023-08-27 12:47:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:55,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:55,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:47:55,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:47:55,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:55,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:55,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1458971788, now seen corresponding path program 1 times [2023-08-27 12:47:55,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:55,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212686165] [2023-08-27 12:47:55,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:55,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:56,554 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 12:47:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:56,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212686165] [2023-08-27 12:47:56,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212686165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:56,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:56,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:47:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783273664] [2023-08-27 12:47:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:56,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 12:47:56,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 12:47:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 12:47:56,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 462 [2023-08-27 12:47:56,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 31 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:56,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:56,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 462 [2023-08-27 12:47:56,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:56,688 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-27 12:47:56,689 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 12:47:56,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 32 events. 8/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 71. Up to 16 conditions per place. [2023-08-27 12:47:56,689 INFO L140 encePairwiseOnDemand]: 458/462 looper letters, 10 selfloop transitions, 3 changer transitions 8/21 dead transitions. [2023-08-27 12:47:56,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 21 transitions, 96 flow [2023-08-27 12:47:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:47:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:47:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 827 transitions. [2023-08-27 12:47:56,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.358008658008658 [2023-08-27 12:47:56,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 827 transitions. [2023-08-27 12:47:56,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 827 transitions. [2023-08-27 12:47:56,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:56,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 827 transitions. [2023-08-27 12:47:56,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.4) internal successors, (827), 5 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:56,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 462.0) internal successors, (2772), 6 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:56,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 462.0) internal successors, (2772), 6 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:56,702 INFO L175 Difference]: Start difference. First operand has 20 places, 11 transitions, 31 flow. Second operand 5 states and 827 transitions. [2023-08-27 12:47:56,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 21 transitions, 96 flow [2023-08-27 12:47:56,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:47:56,704 INFO L231 Difference]: Finished difference. Result has 24 places, 11 transitions, 38 flow [2023-08-27 12:47:56,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=38, PETRI_PLACES=24, PETRI_TRANSITIONS=11} [2023-08-27 12:47:56,706 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -6 predicate places. [2023-08-27 12:47:56,707 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 11 transitions, 38 flow [2023-08-27 12:47:56,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:56,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:56,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:47:56,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:47:56,710 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-27 12:47:56,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash -755978558, now seen corresponding path program 2 times [2023-08-27 12:47:56,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:56,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435408680] [2023-08-27 12:47:56,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:56,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:57,620 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 12:47:57,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:57,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435408680] [2023-08-27 12:47:57,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435408680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:57,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:57,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 12:47:57,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136806850] [2023-08-27 12:47:57,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:57,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 12:47:57,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:57,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 12:47:57,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 12:47:57,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 462 [2023-08-27 12:47:57,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 11 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:57,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:57,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 462 [2023-08-27 12:47:57,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:47:57,724 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-27 12:47:57,725 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 12:47:57,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2023-08-27 12:47:57,725 INFO L140 encePairwiseOnDemand]: 458/462 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-08-27 12:47:57,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 12 transitions, 62 flow [2023-08-27 12:47:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:47:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:47:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2023-08-27 12:47:57,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3541125541125541 [2023-08-27 12:47:57,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2023-08-27 12:47:57,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2023-08-27 12:47:57,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:47:57,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2023-08-27 12:47:57,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:57,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 462.0) internal successors, (2772), 6 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:57,735 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 462.0) internal successors, (2772), 6 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:57,735 INFO L175 Difference]: Start difference. First operand has 24 places, 11 transitions, 38 flow. Second operand 5 states and 818 transitions. [2023-08-27 12:47:57,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 12 transitions, 62 flow [2023-08-27 12:47:57,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 12 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 12:47:57,736 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-08-27 12:47:57,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-08-27 12:47:57,738 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -6 predicate places. [2023-08-27 12:47:57,738 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-08-27 12:47:57,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:47:57,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2023-08-27 12:47:57,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2023-08-27 12:47:57,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2023-08-27 12:47:57,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2023-08-27 12:47:57,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2023-08-27 12:47:57,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2023-08-27 12:47:57,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2023-08-27 12:47:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2023-08-27 12:47:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2023-08-27 12:47:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2023-08-27 12:47:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2023-08-27 12:47:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (14 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2023-08-27 12:47:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2023-08-27 12:47:57,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2023-08-27 12:47:57,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2023-08-27 12:47:57,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2023-08-27 12:47:57,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2023-08-27 12:47:57,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2023-08-27 12:47:57,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2023-08-27 12:47:57,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2023-08-27 12:47:57,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2023-08-27 12:47:57,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 12:47:57,751 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-27 12:47:57,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:47:57,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:47:57,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:47:57 BasicIcfg [2023-08-27 12:47:57,761 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:47:57,762 INFO L158 Benchmark]: Toolchain (without parser) took 14640.55ms. Allocated memory was 356.5MB in the beginning and 513.8MB in the end (delta: 157.3MB). Free memory was 333.0MB in the beginning and 229.8MB in the end (delta: 103.3MB). Peak memory consumption was 262.8MB. Max. memory is 16.0GB. [2023-08-27 12:47:57,762 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 333.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:47:57,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 321.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 12:47:57,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 356.5MB. Free memory was 321.7MB in the beginning and 319.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:47:57,763 INFO L158 Benchmark]: Boogie Preprocessor took 35.48ms. Allocated memory is still 356.5MB. Free memory was 319.6MB in the beginning and 318.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:47:57,763 INFO L158 Benchmark]: RCFGBuilder took 500.92ms. Allocated memory is still 356.5MB. Free memory was 318.1MB in the beginning and 299.2MB in the end (delta: 18.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 12:47:57,764 INFO L158 Benchmark]: TraceAbstraction took 13816.20ms. Allocated memory was 356.5MB in the beginning and 513.8MB in the end (delta: 157.3MB). Free memory was 298.6MB in the beginning and 229.8MB in the end (delta: 68.8MB). Peak memory consumption was 229.3MB. Max. memory is 16.0GB. [2023-08-27 12:47:57,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 333.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 321.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 356.5MB. Free memory was 321.7MB in the beginning and 319.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.48ms. Allocated memory is still 356.5MB. Free memory was 319.6MB in the beginning and 318.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 500.92ms. Allocated memory is still 356.5MB. Free memory was 318.1MB in the beginning and 299.2MB in the end (delta: 18.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 13816.20ms. Allocated memory was 356.5MB in the beginning and 513.8MB in the end (delta: 157.3MB). Free memory was 298.6MB in the beginning and 229.8MB in the end (delta: 68.8MB). Peak memory consumption was 229.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 181 PlacesBefore, 30 PlacesAfterwards, 191 TransitionsBefore, 23 TransitionsAfterwards, 9272 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 138 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 44 ConcurrentYvCompositions, 17 ChoiceCompositions, 260 TotalNumberOfCompositions, 8988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8988, independent: 8988, independent conditional: 0, independent unconditional: 8988, 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: 5568, independent: 5568, independent conditional: 0, independent unconditional: 5568, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8988, independent: 3420, independent conditional: 0, independent unconditional: 3420, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5568, unknown conditional: 0, unknown unconditional: 5568] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, 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: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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 5 procedures, 298 locations, 27 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: 13.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 12:47:57,782 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...