./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 23:58:30,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:58:30,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:58:30,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:58:30,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:58:30,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:58:31,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:58:31,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:58:31,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:58:31,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:58:31,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:58:31,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:58:31,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:58:31,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:58:31,007 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:58:31,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:58:31,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:58:31,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:58:31,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:58:31,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:58:31,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:58:31,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:58:31,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:58:31,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:58:31,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:58:31,015 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:58:31,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:58:31,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:58:31,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:58:31,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:58:31,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:58:31,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:58:31,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:58:31,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:58:31,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:58:31,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:58:31,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:58:31,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:58:31,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:58:31,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:58:31,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:58:31,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:58:31,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:58:31,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:58:31,026 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb [2024-10-14 23:58:31,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:58:31,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:58:31,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:58:31,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:58:31,426 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:58:31,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2024-10-14 23:58:32,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:58:33,073 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:58:33,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2024-10-14 23:58:33,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5e7ccdc/3cdd43e54e124601b2fed2e4bc374acc/FLAGa108f4a7e [2024-10-14 23:58:33,097 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5e7ccdc/3cdd43e54e124601b2fed2e4bc374acc [2024-10-14 23:58:33,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:58:33,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:58:33,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:58:33,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:58:33,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:58:33,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,110 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd8bcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33, skipping insertion in model container [2024-10-14 23:58:33,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:58:33,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:58:33,294 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:58:33,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:58:33,328 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:58:33,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33 WrapperNode [2024-10-14 23:58:33,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:58:33,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:58:33,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:58:33,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:58:33,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,367 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 153 [2024-10-14 23:58:33,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:58:33,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:58:33,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:58:33,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:58:33,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,396 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 23:58:33,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:58:33,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:58:33,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:58:33,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:58:33,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (1/1) ... [2024-10-14 23:58:33,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:58:33,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:58:33,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 23:58:33,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 23:58:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:58:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 23:58:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 23:58:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 23:58:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 23:58:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 23:58:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:58:33,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:58:33,496 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:58:33,637 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:58:33,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:58:33,871 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:58:33,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:58:34,024 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:58:34,027 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 23:58:34,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:34 BoogieIcfgContainer [2024-10-14 23:58:34,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:58:34,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:58:34,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:58:34,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:58:34,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:58:33" (1/3) ... [2024-10-14 23:58:34,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8a470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:34, skipping insertion in model container [2024-10-14 23:58:34,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:33" (2/3) ... [2024-10-14 23:58:34,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8a470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:34, skipping insertion in model container [2024-10-14 23:58:34,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:34" (3/3) ... [2024-10-14 23:58:34,035 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2024-10-14 23:58:34,052 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:58:34,052 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-14 23:58:34,052 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:58:34,119 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 23:58:34,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions, 146 flow [2024-10-14 23:58:34,176 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2024-10-14 23:58:34,176 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 23:58:34,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 64 events. 10/64 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 202 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2024-10-14 23:58:34,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 66 transitions, 146 flow [2024-10-14 23:58:34,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 62 transitions, 133 flow [2024-10-14 23:58:34,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:58:34,198 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@54aea971, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:58:34,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-14 23:58:34,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:58:34,205 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2024-10-14 23:58:34,205 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 23:58:34,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:34,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:34,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:34,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash 903123495, now seen corresponding path program 1 times [2024-10-14 23:58:34,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:34,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098630415] [2024-10-14 23:58:34,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:34,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:34,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:34,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:34,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098630415] [2024-10-14 23:58:34,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098630415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:34,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:34,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:34,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624166630] [2024-10-14 23:58:34,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:34,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:34,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:34,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-10-14 23:58:34,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:34,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:34,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-10-14 23:58:34,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:34,813 INFO L124 PetriNetUnfolderBase]: 670/1329 cut-off events. [2024-10-14 23:58:34,813 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-14 23:58:34,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 1329 events. 670/1329 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8790 event pairs, 227 based on Foata normal form. 44/1091 useless extension candidates. Maximal degree in co-relation 2335. Up to 539 conditions per place. [2024-10-14 23:58:34,826 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 56 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-10-14 23:58:34,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 319 flow [2024-10-14 23:58:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2024-10-14 23:58:34,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-10-14 23:58:34,838 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 133 flow. Second operand 4 states and 192 transitions. [2024-10-14 23:58:34,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 319 flow [2024-10-14 23:58:34,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:34,845 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 162 flow [2024-10-14 23:58:34,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2024-10-14 23:58:34,848 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2024-10-14 23:58:34,849 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 162 flow [2024-10-14 23:58:34,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:34,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:34,849 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:34,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 23:58:34,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:34,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:34,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2067942178, now seen corresponding path program 1 times [2024-10-14 23:58:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:34,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695917725] [2024-10-14 23:58:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695917725] [2024-10-14 23:58:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695917725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:34,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624990215] [2024-10-14 23:58:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:34,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:34,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:34,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2024-10-14 23:58:34,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:34,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:34,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2024-10-14 23:58:34,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:35,095 INFO L124 PetriNetUnfolderBase]: 505/1161 cut-off events. [2024-10-14 23:58:35,096 INFO L125 PetriNetUnfolderBase]: For 281/283 co-relation queries the response was YES. [2024-10-14 23:58:35,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2251 conditions, 1161 events. 505/1161 cut-off events. For 281/283 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8030 event pairs, 134 based on Foata normal form. 2/992 useless extension candidates. Maximal degree in co-relation 1665. Up to 432 conditions per place. [2024-10-14 23:58:35,103 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 38 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-10-14 23:58:35,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 272 flow [2024-10-14 23:58:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions. [2024-10-14 23:58:35,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6856060606060606 [2024-10-14 23:58:35,107 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 162 flow. Second operand 4 states and 181 transitions. [2024-10-14 23:58:35,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 272 flow [2024-10-14 23:58:35,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 23:58:35,113 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 168 flow [2024-10-14 23:58:35,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-10-14 23:58:35,114 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2024-10-14 23:58:35,115 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 168 flow [2024-10-14 23:58:35,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:35,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:35,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:58:35,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:35,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:35,117 INFO L85 PathProgramCache]: Analyzing trace with hash 318270699, now seen corresponding path program 1 times [2024-10-14 23:58:35,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:35,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443231967] [2024-10-14 23:58:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:35,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:35,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:35,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443231967] [2024-10-14 23:58:35,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443231967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:35,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:35,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:35,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767168716] [2024-10-14 23:58:35,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:35,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:35,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2024-10-14 23:58:35,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:35,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2024-10-14 23:58:35,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:35,515 INFO L124 PetriNetUnfolderBase]: 507/1143 cut-off events. [2024-10-14 23:58:35,515 INFO L125 PetriNetUnfolderBase]: For 519/521 co-relation queries the response was YES. [2024-10-14 23:58:35,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 1143 events. 507/1143 cut-off events. For 519/521 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7798 event pairs, 134 based on Foata normal form. 24/996 useless extension candidates. Maximal degree in co-relation 1713. Up to 454 conditions per place. [2024-10-14 23:58:35,523 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 39 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-10-14 23:58:35,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 278 flow [2024-10-14 23:58:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-10-14 23:58:35,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6704545454545454 [2024-10-14 23:58:35,526 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 168 flow. Second operand 4 states and 177 transitions. [2024-10-14 23:58:35,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 278 flow [2024-10-14 23:58:35,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 75 transitions, 270 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:35,534 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 164 flow [2024-10-14 23:58:35,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2024-10-14 23:58:35,536 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2024-10-14 23:58:35,537 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 164 flow [2024-10-14 23:58:35,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:35,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:35,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:58:35,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:35,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:35,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1055215458, now seen corresponding path program 1 times [2024-10-14 23:58:35,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:35,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713281780] [2024-10-14 23:58:35,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:35,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:35,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713281780] [2024-10-14 23:58:35,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713281780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:35,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:35,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:35,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572620828] [2024-10-14 23:58:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:35,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:35,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:35,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:35,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:35,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-10-14 23:58:35,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:35,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-10-14 23:58:35,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:35,851 INFO L124 PetriNetUnfolderBase]: 800/1641 cut-off events. [2024-10-14 23:58:35,852 INFO L125 PetriNetUnfolderBase]: For 715/748 co-relation queries the response was YES. [2024-10-14 23:58:35,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3338 conditions, 1641 events. 800/1641 cut-off events. For 715/748 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11479 event pairs, 293 based on Foata normal form. 83/1431 useless extension candidates. Maximal degree in co-relation 1885. Up to 667 conditions per place. [2024-10-14 23:58:35,861 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 60 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2024-10-14 23:58:35,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 93 transitions, 406 flow [2024-10-14 23:58:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 190 transitions. [2024-10-14 23:58:35,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7196969696969697 [2024-10-14 23:58:35,864 INFO L175 Difference]: Start difference. First operand has 62 places, 62 transitions, 164 flow. Second operand 4 states and 190 transitions. [2024-10-14 23:58:35,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 93 transitions, 406 flow [2024-10-14 23:58:35,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 93 transitions, 386 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:35,869 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 190 flow [2024-10-14 23:58:35,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-10-14 23:58:35,870 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2024-10-14 23:58:35,870 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 190 flow [2024-10-14 23:58:35,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:35,871 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:35,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 23:58:35,872 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:35,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:35,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1276457633, now seen corresponding path program 1 times [2024-10-14 23:58:35,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:35,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570014161] [2024-10-14 23:58:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:35,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:35,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570014161] [2024-10-14 23:58:35,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570014161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:35,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538113300] [2024-10-14 23:58:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:35,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:35,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:35,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-10-14 23:58:35,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:35,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:35,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-10-14 23:58:35,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:36,118 INFO L124 PetriNetUnfolderBase]: 661/1547 cut-off events. [2024-10-14 23:58:36,120 INFO L125 PetriNetUnfolderBase]: For 713/746 co-relation queries the response was YES. [2024-10-14 23:58:36,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1547 events. 661/1547 cut-off events. For 713/746 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 11391 event pairs, 300 based on Foata normal form. 44/1375 useless extension candidates. Maximal degree in co-relation 1942. Up to 652 conditions per place. [2024-10-14 23:58:36,127 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 60 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-10-14 23:58:36,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 94 transitions, 414 flow [2024-10-14 23:58:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2024-10-14 23:58:36,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-14 23:58:36,128 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 190 flow. Second operand 4 states and 187 transitions. [2024-10-14 23:58:36,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 94 transitions, 414 flow [2024-10-14 23:58:36,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 94 transitions, 411 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:58:36,133 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 189 flow [2024-10-14 23:58:36,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-10-14 23:58:36,134 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-10-14 23:58:36,135 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 189 flow [2024-10-14 23:58:36,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:36,135 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:36,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 23:58:36,135 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:36,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:36,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1276456608, now seen corresponding path program 1 times [2024-10-14 23:58:36,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:36,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156154038] [2024-10-14 23:58:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:36,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:36,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:36,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156154038] [2024-10-14 23:58:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156154038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:36,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582633151] [2024-10-14 23:58:36,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:36,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:36,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:36,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2024-10-14 23:58:36,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:36,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2024-10-14 23:58:36,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:36,396 INFO L124 PetriNetUnfolderBase]: 786/1581 cut-off events. [2024-10-14 23:58:36,396 INFO L125 PetriNetUnfolderBase]: For 632/683 co-relation queries the response was YES. [2024-10-14 23:58:36,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3554 conditions, 1581 events. 786/1581 cut-off events. For 632/683 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10812 event pairs, 160 based on Foata normal form. 26/1472 useless extension candidates. Maximal degree in co-relation 2692. Up to 638 conditions per place. [2024-10-14 23:58:36,404 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 58 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2024-10-14 23:58:36,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 415 flow [2024-10-14 23:58:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-10-14 23:58:36,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2024-10-14 23:58:36,405 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 189 flow. Second operand 5 states and 223 transitions. [2024-10-14 23:58:36,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 415 flow [2024-10-14 23:58:36,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:36,408 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 193 flow [2024-10-14 23:58:36,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-10-14 23:58:36,409 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2024-10-14 23:58:36,409 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 193 flow [2024-10-14 23:58:36,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:36,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:36,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 23:58:36,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:36,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:36,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1648058593, now seen corresponding path program 1 times [2024-10-14 23:58:36,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:36,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275050270] [2024-10-14 23:58:36,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:36,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:36,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:36,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275050270] [2024-10-14 23:58:36,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275050270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:36,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:36,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:36,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54429305] [2024-10-14 23:58:36,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:36,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:36,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:36,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2024-10-14 23:58:36,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:36,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2024-10-14 23:58:36,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:36,592 INFO L124 PetriNetUnfolderBase]: 615/1449 cut-off events. [2024-10-14 23:58:36,593 INFO L125 PetriNetUnfolderBase]: For 927/951 co-relation queries the response was YES. [2024-10-14 23:58:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1449 events. 615/1449 cut-off events. For 927/951 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10639 event pairs, 172 based on Foata normal form. 24/1307 useless extension candidates. Maximal degree in co-relation 1806. Up to 487 conditions per place. [2024-10-14 23:58:36,599 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 41 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-10-14 23:58:36,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 334 flow [2024-10-14 23:58:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-10-14 23:58:36,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2024-10-14 23:58:36,600 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 193 flow. Second operand 4 states and 180 transitions. [2024-10-14 23:58:36,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 334 flow [2024-10-14 23:58:36,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 319 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:36,603 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 190 flow [2024-10-14 23:58:36,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2024-10-14 23:58:36,604 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-10-14 23:58:36,604 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 190 flow [2024-10-14 23:58:36,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:36,605 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:36,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 23:58:36,605 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:36,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash 915449742, now seen corresponding path program 1 times [2024-10-14 23:58:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:36,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573850967] [2024-10-14 23:58:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:36,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:36,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:36,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573850967] [2024-10-14 23:58:36,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573850967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:36,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:36,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632073768] [2024-10-14 23:58:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:36,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:36,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:36,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-10-14 23:58:36,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:36,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-10-14 23:58:36,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:36,890 INFO L124 PetriNetUnfolderBase]: 786/1548 cut-off events. [2024-10-14 23:58:36,890 INFO L125 PetriNetUnfolderBase]: For 1043/1095 co-relation queries the response was YES. [2024-10-14 23:58:36,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 1548 events. 786/1548 cut-off events. For 1043/1095 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10409 event pairs, 159 based on Foata normal form. 79/1492 useless extension candidates. Maximal degree in co-relation 2691. Up to 382 conditions per place. [2024-10-14 23:58:36,898 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 70 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-10-14 23:58:36,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 516 flow [2024-10-14 23:58:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:58:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:58:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 250 transitions. [2024-10-14 23:58:36,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2024-10-14 23:58:36,900 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 190 flow. Second operand 6 states and 250 transitions. [2024-10-14 23:58:36,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 516 flow [2024-10-14 23:58:36,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 106 transitions, 490 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:36,903 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 207 flow [2024-10-14 23:58:36,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-10-14 23:58:36,904 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2024-10-14 23:58:36,904 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 207 flow [2024-10-14 23:58:36,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:36,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 23:58:36,905 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash 449759974, now seen corresponding path program 1 times [2024-10-14 23:58:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748847120] [2024-10-14 23:58:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:36,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:36,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748847120] [2024-10-14 23:58:36,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748847120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:36,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:36,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349648733] [2024-10-14 23:58:36,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:36,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:36,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:36,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:36,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2024-10-14 23:58:36,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:36,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:36,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2024-10-14 23:58:36,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:37,092 INFO L124 PetriNetUnfolderBase]: 616/1413 cut-off events. [2024-10-14 23:58:37,092 INFO L125 PetriNetUnfolderBase]: For 1607/1683 co-relation queries the response was YES. [2024-10-14 23:58:37,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3226 conditions, 1413 events. 616/1413 cut-off events. For 1607/1683 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10118 event pairs, 173 based on Foata normal form. 87/1347 useless extension candidates. Maximal degree in co-relation 1903. Up to 512 conditions per place. [2024-10-14 23:58:37,099 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 44 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-10-14 23:58:37,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 75 transitions, 365 flow [2024-10-14 23:58:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-10-14 23:58:37,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 23:58:37,100 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 207 flow. Second operand 4 states and 176 transitions. [2024-10-14 23:58:37,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 75 transitions, 365 flow [2024-10-14 23:58:37,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 23:58:37,104 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 198 flow [2024-10-14 23:58:37,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2024-10-14 23:58:37,104 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-10-14 23:58:37,104 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 198 flow [2024-10-14 23:58:37,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:37,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:37,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 23:58:37,105 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:37,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash -738511418, now seen corresponding path program 1 times [2024-10-14 23:58:37,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:37,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667416428] [2024-10-14 23:58:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:37,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:37,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:37,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667416428] [2024-10-14 23:58:37,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667416428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:37,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:37,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:37,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938764918] [2024-10-14 23:58:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:37,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:37,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:37,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-10-14 23:58:37,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:37,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-10-14 23:58:37,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:37,297 INFO L124 PetriNetUnfolderBase]: 788/1559 cut-off events. [2024-10-14 23:58:37,297 INFO L125 PetriNetUnfolderBase]: For 1454/1497 co-relation queries the response was YES. [2024-10-14 23:58:37,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3695 conditions, 1559 events. 788/1559 cut-off events. For 1454/1497 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10479 event pairs, 297 based on Foata normal form. 69/1487 useless extension candidates. Maximal degree in co-relation 2201. Up to 672 conditions per place. [2024-10-14 23:58:37,305 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 59 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-10-14 23:58:37,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 437 flow [2024-10-14 23:58:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-10-14 23:58:37,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7007575757575758 [2024-10-14 23:58:37,307 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 198 flow. Second operand 4 states and 185 transitions. [2024-10-14 23:58:37,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 437 flow [2024-10-14 23:58:37,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 90 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 23:58:37,310 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 200 flow [2024-10-14 23:58:37,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2024-10-14 23:58:37,310 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2024-10-14 23:58:37,311 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 200 flow [2024-10-14 23:58:37,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:37,311 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:37,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 23:58:37,311 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:37,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1057656865, now seen corresponding path program 1 times [2024-10-14 23:58:37,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:37,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392818193] [2024-10-14 23:58:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:37,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:37,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392818193] [2024-10-14 23:58:37,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392818193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:37,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:37,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24259179] [2024-10-14 23:58:37,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:37,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:37,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:37,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:37,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2024-10-14 23:58:37,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:37,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2024-10-14 23:58:37,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:37,612 INFO L124 PetriNetUnfolderBase]: 880/1679 cut-off events. [2024-10-14 23:58:37,612 INFO L125 PetriNetUnfolderBase]: For 1673/1765 co-relation queries the response was YES. [2024-10-14 23:58:37,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 1679 events. 880/1679 cut-off events. For 1673/1765 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10992 event pairs, 188 based on Foata normal form. 92/1659 useless extension candidates. Maximal degree in co-relation 3232. Up to 666 conditions per place. [2024-10-14 23:58:37,621 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 62 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2024-10-14 23:58:37,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 91 transitions, 474 flow [2024-10-14 23:58:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 221 transitions. [2024-10-14 23:58:37,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696969696969697 [2024-10-14 23:58:37,623 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 200 flow. Second operand 5 states and 221 transitions. [2024-10-14 23:58:37,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 91 transitions, 474 flow [2024-10-14 23:58:37,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:58:37,627 INFO L231 Difference]: Finished difference. Result has 67 places, 59 transitions, 206 flow [2024-10-14 23:58:37,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2024-10-14 23:58:37,627 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2024-10-14 23:58:37,628 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 206 flow [2024-10-14 23:58:37,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:37,628 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:37,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 23:58:37,628 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:37,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1057657890, now seen corresponding path program 1 times [2024-10-14 23:58:37,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:37,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770983555] [2024-10-14 23:58:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:37,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770983555] [2024-10-14 23:58:37,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770983555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:37,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:37,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:37,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684374538] [2024-10-14 23:58:37,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:37,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:37,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:37,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:37,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:37,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-10-14 23:58:37,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:37,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-10-14 23:58:37,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:37,806 INFO L124 PetriNetUnfolderBase]: 721/1530 cut-off events. [2024-10-14 23:58:37,807 INFO L125 PetriNetUnfolderBase]: For 1645/1717 co-relation queries the response was YES. [2024-10-14 23:58:37,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 1530 events. 721/1530 cut-off events. For 1645/1717 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10654 event pairs, 340 based on Foata normal form. 99/1517 useless extension candidates. Maximal degree in co-relation 2874. Up to 725 conditions per place. [2024-10-14 23:58:37,813 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 64 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2024-10-14 23:58:37,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 91 transitions, 470 flow [2024-10-14 23:58:37,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-10-14 23:58:37,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7007575757575758 [2024-10-14 23:58:37,814 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 206 flow. Second operand 4 states and 185 transitions. [2024-10-14 23:58:37,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 91 transitions, 470 flow [2024-10-14 23:58:37,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 458 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 23:58:37,817 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 196 flow [2024-10-14 23:58:37,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-10-14 23:58:37,818 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-10-14 23:58:37,818 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 196 flow [2024-10-14 23:58:37,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:37,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:37,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 23:58:37,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:37,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:37,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1572374967, now seen corresponding path program 1 times [2024-10-14 23:58:37,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:37,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243823411] [2024-10-14 23:58:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:37,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:37,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243823411] [2024-10-14 23:58:37,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243823411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:37,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:37,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435205201] [2024-10-14 23:58:37,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:37,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:37,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:37,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:37,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-10-14 23:58:37,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:37,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:37,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-10-14 23:58:37,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:38,109 INFO L124 PetriNetUnfolderBase]: 853/1625 cut-off events. [2024-10-14 23:58:38,109 INFO L125 PetriNetUnfolderBase]: For 1665/1757 co-relation queries the response was YES. [2024-10-14 23:58:38,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 1625 events. 853/1625 cut-off events. For 1665/1757 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10619 event pairs, 188 based on Foata normal form. 146/1659 useless extension candidates. Maximal degree in co-relation 3137. Up to 440 conditions per place. [2024-10-14 23:58:38,115 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 75 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-10-14 23:58:38,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 562 flow [2024-10-14 23:58:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:58:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:58:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 247 transitions. [2024-10-14 23:58:38,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6237373737373737 [2024-10-14 23:58:38,116 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 196 flow. Second operand 6 states and 247 transitions. [2024-10-14 23:58:38,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 562 flow [2024-10-14 23:58:38,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:38,119 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 215 flow [2024-10-14 23:58:38,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-10-14 23:58:38,119 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 10 predicate places. [2024-10-14 23:58:38,120 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 215 flow [2024-10-14 23:58:38,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:38,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:38,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:38,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 23:58:38,120 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 23:58:38,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:38,121 INFO L85 PathProgramCache]: Analyzing trace with hash -551666041, now seen corresponding path program 1 times [2024-10-14 23:58:38,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:38,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873556877] [2024-10-14 23:58:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:38,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:38,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:38,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873556877] [2024-10-14 23:58:38,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873556877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:38,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:38,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:58:38,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400621587] [2024-10-14 23:58:38,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:38,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:38,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:38,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:38,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:38,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-10-14 23:58:38,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:38,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:38,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-10-14 23:58:38,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:38,391 INFO L124 PetriNetUnfolderBase]: 853/1556 cut-off events. [2024-10-14 23:58:38,391 INFO L125 PetriNetUnfolderBase]: For 2004/2094 co-relation queries the response was YES. [2024-10-14 23:58:38,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 1556 events. 853/1556 cut-off events. For 2004/2094 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9822 event pairs, 340 based on Foata normal form. 117/1611 useless extension candidates. Maximal degree in co-relation 3282. Up to 752 conditions per place. [2024-10-14 23:58:38,395 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2024-10-14 23:58:38,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 123 transitions, 687 flow [2024-10-14 23:58:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:58:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:58:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 264 transitions. [2024-10-14 23:58:38,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 23:58:38,397 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 215 flow. Second operand 6 states and 264 transitions. [2024-10-14 23:58:38,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 123 transitions, 687 flow [2024-10-14 23:58:38,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 123 transitions, 669 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-14 23:58:38,401 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-10-14 23:58:38,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-10-14 23:58:38,402 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2024-10-14 23:58:38,402 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-10-14 23:58:38,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:38,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2024-10-14 23:58:38,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-10-14 23:58:38,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-10-14 23:58:38,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-10-14 23:58:38,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-10-14 23:58:38,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-10-14 23:58:38,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-10-14 23:58:38,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-10-14 23:58:38,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 23:58:38,407 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:38,412 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 23:58:38,412 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 23:58:38,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:58:38 BasicIcfg [2024-10-14 23:58:38,416 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 23:58:38,417 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 23:58:38,417 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 23:58:38,417 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 23:58:38,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:34" (3/4) ... [2024-10-14 23:58:38,418 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 23:58:38,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-14 23:58:38,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-14 23:58:38,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2024-10-14 23:58:38,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-14 23:58:38,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 23:58:38,424 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 23:58:38,489 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 23:58:38,489 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 23:58:38,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 23:58:38,490 INFO L158 Benchmark]: Toolchain (without parser) took 5388.53ms. Allocated memory was 184.5MB in the beginning and 339.7MB in the end (delta: 155.2MB). Free memory was 114.4MB in the beginning and 169.0MB in the end (delta: -54.6MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,490 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 184.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:58:38,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.97ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 102.1MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 184.5MB. Free memory was 102.1MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,491 INFO L158 Benchmark]: Boogie Preprocessor took 37.20ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 97.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,491 INFO L158 Benchmark]: RCFGBuilder took 621.39ms. Allocated memory is still 184.5MB. Free memory was 97.6MB in the beginning and 121.5MB in the end (delta: -23.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,491 INFO L158 Benchmark]: TraceAbstraction took 4387.52ms. Allocated memory was 184.5MB in the beginning and 339.7MB in the end (delta: 155.2MB). Free memory was 120.5MB in the beginning and 173.2MB in the end (delta: -52.7MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,492 INFO L158 Benchmark]: Witness Printer took 72.76ms. Allocated memory is still 339.7MB. Free memory was 173.2MB in the beginning and 169.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 23:58:38,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 184.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.97ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 102.1MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 184.5MB. Free memory was 102.1MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.20ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 97.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 621.39ms. Allocated memory is still 184.5MB. Free memory was 97.6MB in the beginning and 121.5MB in the end (delta: -23.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4387.52ms. Allocated memory was 184.5MB in the beginning and 339.7MB in the end (delta: 155.2MB). Free memory was 120.5MB in the beginning and 173.2MB in the end (delta: -52.7MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * Witness Printer took 72.76ms. Allocated memory is still 339.7MB. Free memory was 173.2MB in the beginning and 169.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 80]: 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: 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: 80]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1105 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 852 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1972 IncrementalHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 91 mSDtfsCounter, 1972 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=13, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 23:58:38,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE