./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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/pthread-C-DAC/pthread-demo-datarace-3.i -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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 21:52:38,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:52:38,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:52:38,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:52:39,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:52:39,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:52:39,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:52:39,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:52:39,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:52:39,049 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:52:39,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:52:39,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:52:39,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:52:39,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:52:39,053 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:52:39,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:52:39,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:52:39,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:52:39,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:52:39,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:52:39,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:52:39,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:52:39,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:52:39,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:52:39,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:52:39,060 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:52:39,060 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:52:39,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:52:39,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:52:39,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:52:39,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:52:39,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:52:39,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:52:39,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:52:39,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:52:39,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:52:39,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:52:39,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:52:39,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:52:39,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:52:39,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:52:39,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:52:39,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:52:39,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:52:39,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-20 21:52:39,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:52:39,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:52:39,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:52:39,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:52:39,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:52:39,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-20 21:52:40,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:52:41,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:52:41,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-20 21:52:41,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06227ccd9/995f4e8fc83341b5a33031b33905c8ef/FLAG6ec10ab07 [2024-11-20 21:52:41,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06227ccd9/995f4e8fc83341b5a33031b33905c8ef [2024-11-20 21:52:41,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:52:41,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:52:41,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:52:41,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:52:41,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:52:41,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:52:41" (1/1) ... [2024-11-20 21:52:41,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57808e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:41, skipping insertion in model container [2024-11-20 21:52:41,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:52:41" (1/1) ... [2024-11-20 21:52:41,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:52:41,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:52:41,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:52:42,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:52:42,085 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:52:42,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42 WrapperNode [2024-11-20 21:52:42,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:52:42,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:52:42,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:52:42,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:52:42,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,141 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2024-11-20 21:52:42,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:52:42,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:52:42,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:52:42,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:52:42,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,170 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]. [2024-11-20 21:52:42,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:52:42,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:52:42,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:52:42,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:52:42,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (1/1) ... [2024-11-20 21:52:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:52:42,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:42,224 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) [2024-11-20 21:52:42,228 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 [2024-11-20 21:52:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 21:52:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 21:52:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-20 21:52:42,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-20 21:52:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:52:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:52:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:52:42,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:52:42,279 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:52:42,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:52:42,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:52:42,609 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:52:42,609 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:52:42,960 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:52:42,960 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 21:52:42,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:52:42 BoogieIcfgContainer [2024-11-20 21:52:42,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:52:42,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:52:42,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:52:42,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:52:42,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:52:41" (1/3) ... [2024-11-20 21:52:42,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd03b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:52:42, skipping insertion in model container [2024-11-20 21:52:42,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:52:42" (2/3) ... [2024-11-20 21:52:42,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd03b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:52:42, skipping insertion in model container [2024-11-20 21:52:42,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:52:42" (3/3) ... [2024-11-20 21:52:42,970 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-20 21:52:42,987 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:52:42,988 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-20 21:52:42,988 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:52:43,034 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 21:52:43,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2024-11-20 21:52:43,104 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-20 21:52:43,104 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 21:52:43,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-20 21:52:43,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2024-11-20 21:52:43,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2024-11-20 21:52:43,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:52:43,130 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;@711dc490, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:52:43,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 21:52:43,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:52:43,139 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-20 21:52:43,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:52:43,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:43,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 21:52:43,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:43,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash 366041552, now seen corresponding path program 1 times [2024-11-20 21:52:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654046818] [2024-11-20 21:52:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:43,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:43,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654046818] [2024-11-20 21:52:43,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654046818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:43,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:43,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 21:52:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101664838] [2024-11-20 21:52:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:43,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:52:43,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:43,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:52:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:52:43,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-20 21:52:43,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:43,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:43,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-20 21:52:43,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:43,612 INFO L124 PetriNetUnfolderBase]: 42/133 cut-off events. [2024-11-20 21:52:43,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:52:43,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 133 events. 42/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 549 event pairs, 6 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 213. Up to 66 conditions per place. [2024-11-20 21:52:43,618 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-11-20 21:52:43,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2024-11-20 21:52:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:52:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:52:43,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-20 21:52:43,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2024-11-20 21:52:43,630 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2024-11-20 21:52:43,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2024-11-20 21:52:43,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:52:43,634 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2024-11-20 21:52:43,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-20 21:52:43,638 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-20 21:52:43,639 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2024-11-20 21:52:43,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:43,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:43,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 21:52:43,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:52:43,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:43,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1536767146, now seen corresponding path program 1 times [2024-11-20 21:52:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158117818] [2024-11-20 21:52:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:43,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:43,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158117818] [2024-11-20 21:52:43,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158117818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:43,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:52:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033045811] [2024-11-20 21:52:43,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:43,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:52:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:52:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:52:43,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:43,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:43,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:43,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:43,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:43,942 INFO L124 PetriNetUnfolderBase]: 68/190 cut-off events. [2024-11-20 21:52:43,942 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-20 21:52:43,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 190 events. 68/190 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 879 event pairs, 18 based on Foata normal form. 8/159 useless extension candidates. Maximal degree in co-relation 371. Up to 107 conditions per place. [2024-11-20 21:52:43,946 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-20 21:52:43,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 182 flow [2024-11-20 21:52:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 21:52:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 21:52:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-11-20 21:52:43,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2024-11-20 21:52:43,948 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 97 transitions. [2024-11-20 21:52:43,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 182 flow [2024-11-20 21:52:43,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:52:43,950 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2024-11-20 21:52:43,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-20 21:52:43,951 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-20 21:52:43,951 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2024-11-20 21:52:43,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:43,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:43,952 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:43,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 21:52:43,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:43,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash -421374207, now seen corresponding path program 1 times [2024-11-20 21:52:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:43,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597730287] [2024-11-20 21:52:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:44,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:44,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597730287] [2024-11-20 21:52:44,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597730287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:44,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:44,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102631717] [2024-11-20 21:52:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:44,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:52:44,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:52:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:52:44,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-20 21:52:44,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:44,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-20 21:52:44,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:44,187 INFO L124 PetriNetUnfolderBase]: 78/216 cut-off events. [2024-11-20 21:52:44,187 INFO L125 PetriNetUnfolderBase]: For 63/64 co-relation queries the response was YES. [2024-11-20 21:52:44,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 216 events. 78/216 cut-off events. For 63/64 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1024 event pairs, 23 based on Foata normal form. 13/189 useless extension candidates. Maximal degree in co-relation 473. Up to 97 conditions per place. [2024-11-20 21:52:44,193 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-20 21:52:44,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 242 flow [2024-11-20 21:52:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:52:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:52:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-20 21:52:44,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-20 21:52:44,195 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 83 transitions. [2024-11-20 21:52:44,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 242 flow [2024-11-20 21:52:44,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:52:44,200 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2024-11-20 21:52:44,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-11-20 21:52:44,202 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2024-11-20 21:52:44,202 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2024-11-20 21:52:44,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:44,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:44,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:52:44,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:44,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:44,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1802373294, now seen corresponding path program 1 times [2024-11-20 21:52:44,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:44,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767117155] [2024-11-20 21:52:44,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:44,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767117155] [2024-11-20 21:52:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767117155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:44,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:44,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385015547] [2024-11-20 21:52:44,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:44,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:52:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:52:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:52:44,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:44,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:44,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:44,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:44,445 INFO L124 PetriNetUnfolderBase]: 138/423 cut-off events. [2024-11-20 21:52:44,446 INFO L125 PetriNetUnfolderBase]: For 253/274 co-relation queries the response was YES. [2024-11-20 21:52:44,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 423 events. 138/423 cut-off events. For 253/274 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2366 event pairs, 19 based on Foata normal form. 17/382 useless extension candidates. Maximal degree in co-relation 1054. Up to 117 conditions per place. [2024-11-20 21:52:44,454 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 46 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2024-11-20 21:52:44,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 383 flow [2024-11-20 21:52:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:52:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:52:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-20 21:52:44,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-20 21:52:44,458 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 125 transitions. [2024-11-20 21:52:44,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 383 flow [2024-11-20 21:52:44,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:52:44,465 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2024-11-20 21:52:44,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-11-20 21:52:44,466 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-11-20 21:52:44,467 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2024-11-20 21:52:44,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:44,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:44,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 21:52:44,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:44,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1996177808, now seen corresponding path program 1 times [2024-11-20 21:52:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:44,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541534126] [2024-11-20 21:52:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:44,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:44,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541534126] [2024-11-20 21:52:44,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541534126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:44,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:44,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:44,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885565544] [2024-11-20 21:52:44,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:44,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:52:44,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:52:44,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 21:52:44,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:44,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:44,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:44,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:44,700 INFO L124 PetriNetUnfolderBase]: 160/515 cut-off events. [2024-11-20 21:52:44,700 INFO L125 PetriNetUnfolderBase]: For 852/867 co-relation queries the response was YES. [2024-11-20 21:52:44,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 515 events. 160/515 cut-off events. For 852/867 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3086 event pairs, 23 based on Foata normal form. 29/521 useless extension candidates. Maximal degree in co-relation 1467. Up to 239 conditions per place. [2024-11-20 21:52:44,708 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 41 selfloop transitions, 20 changer transitions 0/73 dead transitions. [2024-11-20 21:52:44,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 497 flow [2024-11-20 21:52:44,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:52:44,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:52:44,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-20 21:52:44,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-20 21:52:44,710 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 136 transitions. [2024-11-20 21:52:44,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 497 flow [2024-11-20 21:52:44,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 485 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-20 21:52:44,722 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2024-11-20 21:52:44,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-20 21:52:44,723 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-20 21:52:44,723 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2024-11-20 21:52:44,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:44,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:44,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 21:52:44,724 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:44,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash 863913689, now seen corresponding path program 1 times [2024-11-20 21:52:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836541153] [2024-11-20 21:52:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:44,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:44,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836541153] [2024-11-20 21:52:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836541153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:44,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126418958] [2024-11-20 21:52:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:44,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:52:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:52:44,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:52:44,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-20 21:52:44,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:44,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-20 21:52:44,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:44,934 INFO L124 PetriNetUnfolderBase]: 195/592 cut-off events. [2024-11-20 21:52:44,936 INFO L125 PetriNetUnfolderBase]: For 1746/1850 co-relation queries the response was YES. [2024-11-20 21:52:44,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 592 events. 195/592 cut-off events. For 1746/1850 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3772 event pairs, 55 based on Foata normal form. 46/601 useless extension candidates. Maximal degree in co-relation 1923. Up to 264 conditions per place. [2024-11-20 21:52:44,942 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 47 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-20 21:52:44,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 618 flow [2024-11-20 21:52:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:52:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:52:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-20 21:52:44,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-20 21:52:44,945 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 85 transitions. [2024-11-20 21:52:44,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 618 flow [2024-11-20 21:52:44,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 595 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-20 21:52:44,952 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2024-11-20 21:52:44,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-20 21:52:44,955 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2024-11-20 21:52:44,955 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2024-11-20 21:52:44,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:44,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:44,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:44,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 21:52:44,956 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:44,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2139062292, now seen corresponding path program 1 times [2024-11-20 21:52:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021225848] [2024-11-20 21:52:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:44,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:45,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:45,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021225848] [2024-11-20 21:52:45,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021225848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:45,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:45,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:52:45,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222561889] [2024-11-20 21:52:45,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:45,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:52:45,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:45,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:52:45,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:52:45,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:45,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:45,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:45,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:45,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:45,271 INFO L124 PetriNetUnfolderBase]: 152/503 cut-off events. [2024-11-20 21:52:45,271 INFO L125 PetriNetUnfolderBase]: For 1368/1385 co-relation queries the response was YES. [2024-11-20 21:52:45,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 503 events. 152/503 cut-off events. For 1368/1385 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3104 event pairs, 36 based on Foata normal form. 39/529 useless extension candidates. Maximal degree in co-relation 1692. Up to 276 conditions per place. [2024-11-20 21:52:45,277 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 43 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-11-20 21:52:45,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 530 flow [2024-11-20 21:52:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 21:52:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 21:52:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-11-20 21:52:45,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-20 21:52:45,279 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 8 states and 132 transitions. [2024-11-20 21:52:45,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 530 flow [2024-11-20 21:52:45,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 67 transitions, 505 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-20 21:52:45,285 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 334 flow [2024-11-20 21:52:45,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-20 21:52:45,286 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-20 21:52:45,286 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 334 flow [2024-11-20 21:52:45,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:45,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:45,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:45,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 21:52:45,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:45,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash -790426157, now seen corresponding path program 1 times [2024-11-20 21:52:45,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:45,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689041579] [2024-11-20 21:52:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:45,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:45,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689041579] [2024-11-20 21:52:45,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689041579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:45,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:45,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:52:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037181002] [2024-11-20 21:52:45,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:45,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:52:45,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:45,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:52:45,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:52:45,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:45,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:45,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:45,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:45,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:45,552 INFO L124 PetriNetUnfolderBase]: 194/609 cut-off events. [2024-11-20 21:52:45,552 INFO L125 PetriNetUnfolderBase]: For 1459/1503 co-relation queries the response was YES. [2024-11-20 21:52:45,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 609 events. 194/609 cut-off events. For 1459/1503 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3736 event pairs, 28 based on Foata normal form. 42/642 useless extension candidates. Maximal degree in co-relation 2043. Up to 254 conditions per place. [2024-11-20 21:52:45,557 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 53 selfloop transitions, 25 changer transitions 0/91 dead transitions. [2024-11-20 21:52:45,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 719 flow [2024-11-20 21:52:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:52:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 21:52:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-11-20 21:52:45,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-11-20 21:52:45,559 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 334 flow. Second operand 10 states and 182 transitions. [2024-11-20 21:52:45,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 719 flow [2024-11-20 21:52:45,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 21:52:45,565 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 499 flow [2024-11-20 21:52:45,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-20 21:52:45,567 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2024-11-20 21:52:45,568 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 499 flow [2024-11-20 21:52:45,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:45,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:45,568 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:45,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 21:52:45,569 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:45,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:45,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1554354743, now seen corresponding path program 1 times [2024-11-20 21:52:45,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:45,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408794387] [2024-11-20 21:52:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:45,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:45,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408794387] [2024-11-20 21:52:45,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408794387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835873581] [2024-11-20 21:52:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:45,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:45,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:45,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:45,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 21:52:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:45,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 21:52:45,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:45,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:52:45,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835873581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:45,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:52:45,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 21:52:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025544061] [2024-11-20 21:52:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:45,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:52:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:52:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:52:45,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:45,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 499 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:45,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:45,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:45,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:46,052 INFO L124 PetriNetUnfolderBase]: 247/674 cut-off events. [2024-11-20 21:52:46,052 INFO L125 PetriNetUnfolderBase]: For 2772/2858 co-relation queries the response was YES. [2024-11-20 21:52:46,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2624 conditions, 674 events. 247/674 cut-off events. For 2772/2858 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4159 event pairs, 33 based on Foata normal form. 53/668 useless extension candidates. Maximal degree in co-relation 2594. Up to 279 conditions per place. [2024-11-20 21:52:46,058 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 48 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-20 21:52:46,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 78 transitions, 740 flow [2024-11-20 21:52:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:52:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:52:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-20 21:52:46,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-20 21:52:46,059 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 499 flow. Second operand 4 states and 71 transitions. [2024-11-20 21:52:46,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 78 transitions, 740 flow [2024-11-20 21:52:46,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 78 transitions, 674 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-11-20 21:52:46,065 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 463 flow [2024-11-20 21:52:46,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-20 21:52:46,066 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-20 21:52:46,066 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 463 flow [2024-11-20 21:52:46,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:46,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:46,067 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 21:52:46,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 21:52:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:46,272 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:46,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash -940356396, now seen corresponding path program 1 times [2024-11-20 21:52:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14343242] [2024-11-20 21:52:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:52:46,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:46,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14343242] [2024-11-20 21:52:46,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14343242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:46,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:46,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:46,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768911962] [2024-11-20 21:52:46,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:46,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:52:46,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:52:46,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:52:46,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:46,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:46,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:46,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:46,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:46,453 INFO L124 PetriNetUnfolderBase]: 230/661 cut-off events. [2024-11-20 21:52:46,454 INFO L125 PetriNetUnfolderBase]: For 2146/2243 co-relation queries the response was YES. [2024-11-20 21:52:46,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 661 events. 230/661 cut-off events. For 2146/2243 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4027 event pairs, 23 based on Foata normal form. 66/707 useless extension candidates. Maximal degree in co-relation 2480. Up to 239 conditions per place. [2024-11-20 21:52:46,459 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 52 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2024-11-20 21:52:46,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 83 transitions, 738 flow [2024-11-20 21:52:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:52:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:52:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-20 21:52:46,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-20 21:52:46,460 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 463 flow. Second operand 4 states and 71 transitions. [2024-11-20 21:52:46,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 83 transitions, 738 flow [2024-11-20 21:52:46,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 83 transitions, 728 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:52:46,466 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 469 flow [2024-11-20 21:52:46,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-20 21:52:46,467 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-20 21:52:46,467 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 469 flow [2024-11-20 21:52:46,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:46,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:46,467 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:46,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 21:52:46,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:46,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:46,468 INFO L85 PathProgramCache]: Analyzing trace with hash 185181774, now seen corresponding path program 1 times [2024-11-20 21:52:46,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:46,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450845628] [2024-11-20 21:52:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:46,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:46,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:46,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450845628] [2024-11-20 21:52:46,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450845628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:46,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614443199] [2024-11-20 21:52:46,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:46,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:46,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:46,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:46,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 21:52:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:46,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:52:46,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:46,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:52:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:46,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614443199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:52:46,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:52:46,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-20 21:52:46,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026358241] [2024-11-20 21:52:46,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:52:46,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 21:52:46,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 21:52:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-20 21:52:46,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:46,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 469 flow. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:46,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:46,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:46,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:47,212 INFO L124 PetriNetUnfolderBase]: 343/1016 cut-off events. [2024-11-20 21:52:47,213 INFO L125 PetriNetUnfolderBase]: For 5036/5065 co-relation queries the response was YES. [2024-11-20 21:52:47,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 1016 events. 343/1016 cut-off events. For 5036/5065 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6270 event pairs, 16 based on Foata normal form. 106/1116 useless extension candidates. Maximal degree in co-relation 4145. Up to 272 conditions per place. [2024-11-20 21:52:47,221 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 82 selfloop transitions, 71 changer transitions 0/165 dead transitions. [2024-11-20 21:52:47,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 165 transitions, 1601 flow [2024-11-20 21:52:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 21:52:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-20 21:52:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 399 transitions. [2024-11-20 21:52:47,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-11-20 21:52:47,223 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 469 flow. Second operand 22 states and 399 transitions. [2024-11-20 21:52:47,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 165 transitions, 1601 flow [2024-11-20 21:52:47,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 165 transitions, 1568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:52:47,233 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1265 flow [2024-11-20 21:52:47,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1265, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2024-11-20 21:52:47,233 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2024-11-20 21:52:47,233 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1265 flow [2024-11-20 21:52:47,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:47,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:47,234 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:47,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 21:52:47,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-20 21:52:47,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:47,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:47,435 INFO L85 PathProgramCache]: Analyzing trace with hash 756262837, now seen corresponding path program 1 times [2024-11-20 21:52:47,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:47,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615249584] [2024-11-20 21:52:47,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:47,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:47,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:47,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615249584] [2024-11-20 21:52:47,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615249584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:47,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969214316] [2024-11-20 21:52:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:47,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:47,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:47,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:47,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 21:52:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:47,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 21:52:47,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:47,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:52:47,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:47,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969214316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:52:47,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:52:47,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-20 21:52:47,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983928719] [2024-11-20 21:52:47,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:52:47,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 21:52:47,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:47,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 21:52:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-20 21:52:47,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:47,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1265 flow. Second operand has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:47,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:47,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:47,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:48,558 INFO L124 PetriNetUnfolderBase]: 762/2297 cut-off events. [2024-11-20 21:52:48,558 INFO L125 PetriNetUnfolderBase]: For 23782/23905 co-relation queries the response was YES. [2024-11-20 21:52:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10440 conditions, 2297 events. 762/2297 cut-off events. For 23782/23905 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17791 event pairs, 28 based on Foata normal form. 217/2506 useless extension candidates. Maximal degree in co-relation 10395. Up to 560 conditions per place. [2024-11-20 21:52:48,578 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 169 selfloop transitions, 165 changer transitions 0/346 dead transitions. [2024-11-20 21:52:48,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 346 transitions, 4189 flow [2024-11-20 21:52:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-20 21:52:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-20 21:52:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 626 transitions. [2024-11-20 21:52:48,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2024-11-20 21:52:48,581 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1265 flow. Second operand 33 states and 626 transitions. [2024-11-20 21:52:48,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 346 transitions, 4189 flow [2024-11-20 21:52:48,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 346 transitions, 3624 flow, removed 270 selfloop flow, removed 5 redundant places. [2024-11-20 21:52:48,628 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2847 flow [2024-11-20 21:52:48,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2847, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2024-11-20 21:52:48,629 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2024-11-20 21:52:48,629 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2847 flow [2024-11-20 21:52:48,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:48,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:48,629 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:48,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 21:52:48,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:48,834 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:48,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1718705938, now seen corresponding path program 1 times [2024-11-20 21:52:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:48,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673396648] [2024-11-20 21:52:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:48,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:48,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673396648] [2024-11-20 21:52:48,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673396648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286162815] [2024-11-20 21:52:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:48,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:48,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:48,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 21:52:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:49,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:52:49,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:49,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:52:49,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286162815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:49,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:52:49,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 21:52:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182517] [2024-11-20 21:52:49,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:49,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:52:49,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:52:49,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:52:49,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-20 21:52:49,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2847 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:49,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:49,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-20 21:52:49,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:49,639 INFO L124 PetriNetUnfolderBase]: 781/2398 cut-off events. [2024-11-20 21:52:49,639 INFO L125 PetriNetUnfolderBase]: For 34363/34491 co-relation queries the response was YES. [2024-11-20 21:52:49,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11978 conditions, 2398 events. 781/2398 cut-off events. For 34363/34491 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19236 event pairs, 82 based on Foata normal form. 116/2443 useless extension candidates. Maximal degree in co-relation 11916. Up to 783 conditions per place. [2024-11-20 21:52:49,667 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 205 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-11-20 21:52:49,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 293 transitions, 4483 flow [2024-11-20 21:52:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:52:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:52:49,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-20 21:52:49,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-20 21:52:49,668 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2847 flow. Second operand 6 states and 115 transitions. [2024-11-20 21:52:49,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 293 transitions, 4483 flow [2024-11-20 21:52:49,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 293 transitions, 3622 flow, removed 372 selfloop flow, removed 12 redundant places. [2024-11-20 21:52:49,769 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2257 flow [2024-11-20 21:52:49,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2024-11-20 21:52:49,770 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2024-11-20 21:52:49,770 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2257 flow [2024-11-20 21:52:49,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:49,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:49,771 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 21:52:49,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 21:52:49,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:49,972 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:49,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:49,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1740276926, now seen corresponding path program 1 times [2024-11-20 21:52:49,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:49,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864105642] [2024-11-20 21:52:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:49,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:52:50,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:50,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864105642] [2024-11-20 21:52:50,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864105642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:52:50,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:52:50,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:52:50,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398350004] [2024-11-20 21:52:50,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:52:50,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:52:50,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:50,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:52:50,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:52:50,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:50,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2257 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:50,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:50,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:50,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:50,456 INFO L124 PetriNetUnfolderBase]: 870/2523 cut-off events. [2024-11-20 21:52:50,456 INFO L125 PetriNetUnfolderBase]: For 30021/30071 co-relation queries the response was YES. [2024-11-20 21:52:50,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11558 conditions, 2523 events. 870/2523 cut-off events. For 30021/30071 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19737 event pairs, 125 based on Foata normal form. 110/2613 useless extension candidates. Maximal degree in co-relation 11498. Up to 931 conditions per place. [2024-11-20 21:52:50,485 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 190 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2024-11-20 21:52:50,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 278 transitions, 3367 flow [2024-11-20 21:52:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:52:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:52:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-20 21:52:50,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-20 21:52:50,486 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2257 flow. Second operand 4 states and 73 transitions. [2024-11-20 21:52:50,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 278 transitions, 3367 flow [2024-11-20 21:52:50,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 278 transitions, 3358 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-20 21:52:50,564 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2264 flow [2024-11-20 21:52:50,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2264, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2024-11-20 21:52:50,565 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2024-11-20 21:52:50,565 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2264 flow [2024-11-20 21:52:50,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:50,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:50,566 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:52:50,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 21:52:50,566 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:50,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1031168989, now seen corresponding path program 1 times [2024-11-20 21:52:50,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:50,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791729762] [2024-11-20 21:52:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:50,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:50,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791729762] [2024-11-20 21:52:50,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791729762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:50,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178876920] [2024-11-20 21:52:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:50,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:50,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:50,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 21:52:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:50,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 21:52:50,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:50,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:52:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:51,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178876920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:52:51,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:52:51,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-20 21:52:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404097756] [2024-11-20 21:52:51,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:52:51,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 21:52:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 21:52:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-20 21:52:51,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:51,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2264 flow. Second operand has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:51,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:51,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:51,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:52:52,984 INFO L124 PetriNetUnfolderBase]: 1834/5367 cut-off events. [2024-11-20 21:52:52,984 INFO L125 PetriNetUnfolderBase]: For 137421/137497 co-relation queries the response was YES. [2024-11-20 21:52:53,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25172 conditions, 5367 events. 1834/5367 cut-off events. For 137421/137497 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 45716 event pairs, 18 based on Foata normal form. 520/5879 useless extension candidates. Maximal degree in co-relation 25113. Up to 1216 conditions per place. [2024-11-20 21:52:53,035 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 294 selfloop transitions, 415 changer transitions 0/720 dead transitions. [2024-11-20 21:52:53,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 720 transitions, 8726 flow [2024-11-20 21:52:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-20 21:52:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-20 21:52:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1169 transitions. [2024-11-20 21:52:53,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6387978142076502 [2024-11-20 21:52:53,039 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2264 flow. Second operand 61 states and 1169 transitions. [2024-11-20 21:52:53,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 720 transitions, 8726 flow [2024-11-20 21:52:53,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 720 transitions, 8611 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-20 21:52:53,263 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7142 flow [2024-11-20 21:52:53,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7142, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2024-11-20 21:52:53,264 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2024-11-20 21:52:53,264 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7142 flow [2024-11-20 21:52:53,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:53,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:52:53,265 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 21:52:53,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 21:52:53,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 21:52:53,466 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:52:53,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:52:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash -636451777, now seen corresponding path program 1 times [2024-11-20 21:52:53,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:52:53,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350158533] [2024-11-20 21:52:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:53,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:52:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:52:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350158533] [2024-11-20 21:52:53,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350158533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:52:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192572620] [2024-11-20 21:52:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:52:53,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:52:53,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:52:53,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:52:53,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 21:52:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:52:53,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 21:52:53,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:52:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:53,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:52:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:52:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192572620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:52:54,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:52:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2024-11-20 21:52:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253110901] [2024-11-20 21:52:54,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:52:54,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-20 21:52:54,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:52:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-20 21:52:54,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-20 21:52:54,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:52:54,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7142 flow. Second operand has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:52:54,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:52:54,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:52:54,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:00,972 INFO L124 PetriNetUnfolderBase]: 6251/18538 cut-off events. [2024-11-20 21:53:00,972 INFO L125 PetriNetUnfolderBase]: For 1645620/1645759 co-relation queries the response was YES. [2024-11-20 21:53:01,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99739 conditions, 18538 events. 6251/18538 cut-off events. For 1645620/1645759 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 192051 event pairs, 24 based on Foata normal form. 1435/19964 useless extension candidates. Maximal degree in co-relation 99642. Up to 4760 conditions per place. [2024-11-20 21:53:01,187 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 742 selfloop transitions, 1334 changer transitions 0/2087 dead transitions. [2024-11-20 21:53:01,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 2087 transitions, 32446 flow [2024-11-20 21:53:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-20 21:53:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2024-11-20 21:53:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2729 transitions. [2024-11-20 21:53:01,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6639902676399027 [2024-11-20 21:53:01,192 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7142 flow. Second operand 137 states and 2729 transitions. [2024-11-20 21:53:01,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 2087 transitions, 32446 flow [2024-11-20 21:53:02,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 2087 transitions, 26757 flow, removed 2815 selfloop flow, removed 9 redundant places. [2024-11-20 21:53:02,796 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22123 flow [2024-11-20 21:53:02,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5703, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22123, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2024-11-20 21:53:02,797 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2024-11-20 21:53:02,797 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22123 flow [2024-11-20 21:53:02,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:53:02,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:02,797 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:53:02,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 21:53:02,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 21:53:02,998 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:53:02,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash -587900895, now seen corresponding path program 2 times [2024-11-20 21:53:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693312430] [2024-11-20 21:53:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:03,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693312430] [2024-11-20 21:53:03,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693312430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:03,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972451148] [2024-11-20 21:53:03,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:53:03,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:03,283 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:53:03,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 21:53:03,432 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 21:53:03,433 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:53:03,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 21:53:03,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:03,508 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:03,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:53:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:03,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972451148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:53:03,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:53:03,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-20 21:53:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552076681] [2024-11-20 21:53:03,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:53:03,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-20 21:53:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:03,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-20 21:53:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 21:53:03,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:53:03,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22123 flow. Second operand has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:53:03,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:03,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:53:03,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:53:30,930 INFO L124 PetriNetUnfolderBase]: 19835/57295 cut-off events. [2024-11-20 21:53:30,930 INFO L125 PetriNetUnfolderBase]: For 16885410/16885551 co-relation queries the response was YES. [2024-11-20 21:53:32,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332871 conditions, 57295 events. 19835/57295 cut-off events. For 16885410/16885551 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 672563 event pairs, 518 based on Foata normal form. 2417/59666 useless extension candidates. Maximal degree in co-relation 332688. Up to 12570 conditions per place. [2024-11-20 21:53:33,169 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 924 selfloop transitions, 5760 changer transitions 0/6695 dead transitions. [2024-11-20 21:53:33,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6695 transitions, 113318 flow [2024-11-20 21:53:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-20 21:53:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2024-11-20 21:53:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2733 transitions. [2024-11-20 21:53:33,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282758620689655 [2024-11-20 21:53:33,182 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22123 flow. Second operand 145 states and 2733 transitions. [2024-11-20 21:53:33,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6695 transitions, 113318 flow [2024-11-20 21:53:55,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 6695 transitions, 88894 flow, removed 12087 selfloop flow, removed 23 redundant places. [2024-11-20 21:53:55,514 INFO L231 Difference]: Finished difference. Result has 651 places, 6167 transitions, 92411 flow [2024-11-20 21:53:55,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=17837, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92411, PETRI_PLACES=651, PETRI_TRANSITIONS=6167} [2024-11-20 21:53:55,517 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 622 predicate places. [2024-11-20 21:53:55,517 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 6167 transitions, 92411 flow [2024-11-20 21:53:55,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:53:55,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:53:55,518 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 21:53:55,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 21:53:55,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:55,719 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:53:55,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:53:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash 171217711, now seen corresponding path program 2 times [2024-11-20 21:53:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:53:55,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372719370] [2024-11-20 21:53:55,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:53:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:53:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:53:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:53:56,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372719370] [2024-11-20 21:53:56,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372719370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:53:56,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34173389] [2024-11-20 21:53:56,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:53:56,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:53:56,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:53:56,181 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:53:56,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 21:53:56,361 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 21:53:56,362 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:53:56,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 21:53:56,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:53:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:56,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:53:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:53:56,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34173389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:53:56,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:53:56,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-11-20 21:53:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772028657] [2024-11-20 21:53:56,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:53:56,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-20 21:53:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:53:56,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-20 21:53:56,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2024-11-20 21:53:56,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-20 21:53:56,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 6167 transitions, 92411 flow. Second operand has 41 states, 41 states have (on average 13.78048780487805) internal successors, (565), 41 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:53:56,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:53:56,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-20 21:53:56,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand