./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:44:57,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:44:57,867 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:44:57,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:44:57,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:44:57,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:44:57,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:44:57,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:44:57,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:44:57,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:44:57,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:44:57,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:44:57,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:44:57,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:44:57,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:44:57,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:44:57,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:44:57,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:44:57,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:44:57,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:44:57,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:44:57,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:44:57,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:44:57,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:44:57,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:44:57,907 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:44:57,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:44:57,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:44:57,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:44:57,916 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:44:57,916 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:44:57,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:44:57,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:44:57,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:44:57,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:44:57,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:44:57,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:44:57,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:44:57,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:44:57,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-17 07:44:58,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:44:58,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:44:58,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:44:58,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:44:58,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:44:58,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-17 07:44:59,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:44:59,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:44:59,607 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-17 07:44:59,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2ac4518e/9bba387cf29948f7a38b3b4edf197eb8/FLAGa6994b328 [2024-11-17 07:44:59,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2ac4518e/9bba387cf29948f7a38b3b4edf197eb8 [2024-11-17 07:44:59,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:44:59,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:44:59,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:44:59,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:44:59,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:44:59,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:44:59" (1/1) ... [2024-11-17 07:44:59,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf686f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:44:59, skipping insertion in model container [2024-11-17 07:44:59,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:44:59" (1/1) ... [2024-11-17 07:44:59,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:45:00,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:45:00,189 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:45:00,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:45:00,307 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:45:00,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00 WrapperNode [2024-11-17 07:45:00,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:45:00,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:45:00,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:45:00,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:45:00,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,357 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2024-11-17 07:45:00,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:45:00,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:45:00,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:45:00,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:45:00,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,372 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,384 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]. [2024-11-17 07:45:00,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,388 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:45:00,393 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:45:00,394 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:45:00,394 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:45:00,394 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (1/1) ... [2024-11-17 07:45:00,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:45:00,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:00,425 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) [2024-11-17 07:45:00,427 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 [2024-11-17 07:45:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:45:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:45:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-17 07:45:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-17 07:45:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:45:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:45:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:45:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:45:00,463 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:45:00,573 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:45:00,577 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:45:00,811 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:45:00,812 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:45:00,943 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:45:00,943 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:45:00,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:45:00 BoogieIcfgContainer [2024-11-17 07:45:00,943 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:45:00,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:45:00,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:45:00,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:45:00,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:44:59" (1/3) ... [2024-11-17 07:45:00,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6051f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:45:00, skipping insertion in model container [2024-11-17 07:45:00,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:00" (2/3) ... [2024-11-17 07:45:00,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6051f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:45:00, skipping insertion in model container [2024-11-17 07:45:00,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:45:00" (3/3) ... [2024-11-17 07:45:00,953 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-17 07:45:00,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:45:00,966 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 07:45:00,967 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:45:01,007 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:45:01,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 35 transitions, 77 flow [2024-11-17 07:45:01,064 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-11-17 07:45:01,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:45:01,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 34 events. 4/34 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-17 07:45:01,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 35 transitions, 77 flow [2024-11-17 07:45:01,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 32 transitions, 67 flow [2024-11-17 07:45:01,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:45:01,086 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;@4e0bb7b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:45:01,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-17 07:45:01,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:45:01,096 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-11-17 07:45:01,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:45:01,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:01,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:45:01,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:01,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1474087844, now seen corresponding path program 1 times [2024-11-17 07:45:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074623865] [2024-11-17 07:45:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:01,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:01,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074623865] [2024-11-17 07:45:01,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074623865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:01,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:01,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:45:01,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188866033] [2024-11-17 07:45:01,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:01,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:45:01,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:01,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:45:01,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:45:01,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2024-11-17 07:45:01,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2024-11-17 07:45:01,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:01,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2024-11-17 07:45:01,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:01,499 INFO L124 PetriNetUnfolderBase]: 40/154 cut-off events. [2024-11-17 07:45:01,500 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:45:01,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 154 events. 40/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 695 event pairs, 4 based on Foata normal form. 18/134 useless extension candidates. Maximal degree in co-relation 230. Up to 66 conditions per place. [2024-11-17 07:45:01,504 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 17 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2024-11-17 07:45:01,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 117 flow [2024-11-17 07:45:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:45:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:45:01,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-17 07:45:01,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2024-11-17 07:45:01,516 INFO L175 Difference]: Start difference. First operand has 32 places, 32 transitions, 67 flow. Second operand 3 states and 80 transitions. [2024-11-17 07:45:01,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 117 flow [2024-11-17 07:45:01,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:01,520 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 83 flow [2024-11-17 07:45:01,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2024-11-17 07:45:01,524 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2024-11-17 07:45:01,524 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 83 flow [2024-11-17 07:45:01,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2024-11-17 07:45:01,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:01,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:01,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:45:01,525 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:01,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1533045497, now seen corresponding path program 1 times [2024-11-17 07:45:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:01,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023015371] [2024-11-17 07:45:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:01,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:01,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023015371] [2024-11-17 07:45:01,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023015371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:01,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:01,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:45:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876738899] [2024-11-17 07:45:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:01,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:01,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:01,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:01,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 83 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:01,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:01,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:01,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:01,745 INFO L124 PetriNetUnfolderBase]: 54/180 cut-off events. [2024-11-17 07:45:01,746 INFO L125 PetriNetUnfolderBase]: For 16/18 co-relation queries the response was YES. [2024-11-17 07:45:01,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 180 events. 54/180 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 863 event pairs, 12 based on Foata normal form. 8/143 useless extension candidates. Maximal degree in co-relation 330. Up to 89 conditions per place. [2024-11-17 07:45:01,747 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 22 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-17 07:45:01,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 174 flow [2024-11-17 07:45:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:45:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:45:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-17 07:45:01,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6457142857142857 [2024-11-17 07:45:01,749 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 83 flow. Second operand 5 states and 113 transitions. [2024-11-17 07:45:01,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 174 flow [2024-11-17 07:45:01,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:01,750 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 126 flow [2024-11-17 07:45:01,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2024-11-17 07:45:01,751 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2024-11-17 07:45:01,751 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 126 flow [2024-11-17 07:45:01,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:01,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:01,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:01,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:45:01,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:01,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:01,752 INFO L85 PathProgramCache]: Analyzing trace with hash -740778208, now seen corresponding path program 1 times [2024-11-17 07:45:01,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:01,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798969568] [2024-11-17 07:45:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:01,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:01,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:01,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798969568] [2024-11-17 07:45:01,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798969568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:01,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109569925] [2024-11-17 07:45:01,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:01,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:01,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:01,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-17 07:45:01,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:01,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:01,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-17 07:45:01,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:01,935 INFO L124 PetriNetUnfolderBase]: 101/276 cut-off events. [2024-11-17 07:45:01,935 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-17 07:45:01,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 276 events. 101/276 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1393 event pairs, 20 based on Foata normal form. 17/258 useless extension candidates. Maximal degree in co-relation 621. Up to 132 conditions per place. [2024-11-17 07:45:01,937 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 42 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-11-17 07:45:01,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 297 flow [2024-11-17 07:45:01,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:45:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:45:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-17 07:45:01,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-11-17 07:45:01,942 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 126 flow. Second operand 4 states and 93 transitions. [2024-11-17 07:45:01,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 297 flow [2024-11-17 07:45:01,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:01,946 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 146 flow [2024-11-17 07:45:01,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2024-11-17 07:45:01,947 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 12 predicate places. [2024-11-17 07:45:01,947 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 146 flow [2024-11-17 07:45:01,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:01,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:01,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:01,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:45:01,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:01,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1093486886, now seen corresponding path program 1 times [2024-11-17 07:45:01,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:01,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51220614] [2024-11-17 07:45:01,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:01,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:02,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:02,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51220614] [2024-11-17 07:45:02,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51220614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:02,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:02,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:02,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957437407] [2024-11-17 07:45:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:02,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:45:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:45:02,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:45:02,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:02,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 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) [2024-11-17 07:45:02,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:02,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:02,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:02,173 INFO L124 PetriNetUnfolderBase]: 120/420 cut-off events. [2024-11-17 07:45:02,173 INFO L125 PetriNetUnfolderBase]: For 231/258 co-relation queries the response was YES. [2024-11-17 07:45:02,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 420 events. 120/420 cut-off events. For 231/258 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2523 event pairs, 19 based on Foata normal form. 19/373 useless extension candidates. Maximal degree in co-relation 989. Up to 104 conditions per place. [2024-11-17 07:45:02,177 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 42 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2024-11-17 07:45:02,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 369 flow [2024-11-17 07:45:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:45:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:45:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2024-11-17 07:45:02,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-17 07:45:02,179 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 146 flow. Second operand 6 states and 145 transitions. [2024-11-17 07:45:02,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 369 flow [2024-11-17 07:45:02,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 68 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:02,182 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 224 flow [2024-11-17 07:45:02,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-11-17 07:45:02,183 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 20 predicate places. [2024-11-17 07:45:02,183 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 224 flow [2024-11-17 07:45:02,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 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) [2024-11-17 07:45:02,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:02,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:02,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:45:02,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:02,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1908466377, now seen corresponding path program 1 times [2024-11-17 07:45:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:02,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530541772] [2024-11-17 07:45:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:02,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:02,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530541772] [2024-11-17 07:45:02,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530541772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:02,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328789016] [2024-11-17 07:45:02,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:02,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:02,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:02,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:02,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-17 07:45:02,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:02,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-17 07:45:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:02,365 INFO L124 PetriNetUnfolderBase]: 182/568 cut-off events. [2024-11-17 07:45:02,365 INFO L125 PetriNetUnfolderBase]: For 730/805 co-relation queries the response was YES. [2024-11-17 07:45:02,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 568 events. 182/568 cut-off events. For 730/805 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3644 event pairs, 73 based on Foata normal form. 44/578 useless extension candidates. Maximal degree in co-relation 1544. Up to 288 conditions per place. [2024-11-17 07:45:02,371 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 46 selfloop transitions, 3 changer transitions 0/65 dead transitions. [2024-11-17 07:45:02,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 441 flow [2024-11-17 07:45:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:45:02,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:45:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-17 07:45:02,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-17 07:45:02,373 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 224 flow. Second operand 4 states and 91 transitions. [2024-11-17 07:45:02,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 441 flow [2024-11-17 07:45:02,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 428 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:02,378 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 238 flow [2024-11-17 07:45:02,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-11-17 07:45:02,379 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 24 predicate places. [2024-11-17 07:45:02,379 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 238 flow [2024-11-17 07:45:02,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:02,381 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:02,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:45:02,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:02,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash -76533263, now seen corresponding path program 1 times [2024-11-17 07:45:02,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:02,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317492286] [2024-11-17 07:45:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:02,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317492286] [2024-11-17 07:45:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317492286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:02,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:02,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:02,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016345622] [2024-11-17 07:45:02,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:02,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:45:02,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:45:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:45:02,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:02,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 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) [2024-11-17 07:45:02,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:02,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:02,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:02,570 INFO L124 PetriNetUnfolderBase]: 149/569 cut-off events. [2024-11-17 07:45:02,570 INFO L125 PetriNetUnfolderBase]: For 776/817 co-relation queries the response was YES. [2024-11-17 07:45:02,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 569 events. 149/569 cut-off events. For 776/817 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3693 event pairs, 27 based on Foata normal form. 39/605 useless extension candidates. Maximal degree in co-relation 1604. Up to 240 conditions per place. [2024-11-17 07:45:02,573 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 38 selfloop transitions, 20 changer transitions 0/75 dead transitions. [2024-11-17 07:45:02,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 508 flow [2024-11-17 07:45:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:45:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:45:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2024-11-17 07:45:02,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6489795918367347 [2024-11-17 07:45:02,575 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 238 flow. Second operand 7 states and 159 transitions. [2024-11-17 07:45:02,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 508 flow [2024-11-17 07:45:02,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:02,578 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 398 flow [2024-11-17 07:45:02,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=398, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2024-11-17 07:45:02,579 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 32 predicate places. [2024-11-17 07:45:02,579 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 398 flow [2024-11-17 07:45:02,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 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) [2024-11-17 07:45:02,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:02,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:02,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:45:02,580 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:02,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1866470692, now seen corresponding path program 1 times [2024-11-17 07:45:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:02,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850583702] [2024-11-17 07:45:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:02,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:02,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850583702] [2024-11-17 07:45:02,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850583702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:02,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:02,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:02,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196957466] [2024-11-17 07:45:02,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:02,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:02,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:02,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:02,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:02,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:02,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:02,760 INFO L124 PetriNetUnfolderBase]: 124/481 cut-off events. [2024-11-17 07:45:02,760 INFO L125 PetriNetUnfolderBase]: For 1236/1276 co-relation queries the response was YES. [2024-11-17 07:45:02,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 481 events. 124/481 cut-off events. For 1236/1276 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2982 event pairs, 33 based on Foata normal form. 46/524 useless extension candidates. Maximal degree in co-relation 1514. Up to 228 conditions per place. [2024-11-17 07:45:02,763 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 11 changer transitions 0/68 dead transitions. [2024-11-17 07:45:02,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 68 transitions, 540 flow [2024-11-17 07:45:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:45:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:45:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-17 07:45:02,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-17 07:45:02,765 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 398 flow. Second operand 8 states and 161 transitions. [2024-11-17 07:45:02,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 68 transitions, 540 flow [2024-11-17 07:45:02,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 68 transitions, 497 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 07:45:02,768 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 340 flow [2024-11-17 07:45:02,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=340, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2024-11-17 07:45:02,769 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 33 predicate places. [2024-11-17 07:45:02,769 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 340 flow [2024-11-17 07:45:02,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:02,770 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:02,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:45:02,770 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:02,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1866470691, now seen corresponding path program 1 times [2024-11-17 07:45:02,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:02,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658312051] [2024-11-17 07:45:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:02,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:02,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658312051] [2024-11-17 07:45:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658312051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:02,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:02,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:02,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571800193] [2024-11-17 07:45:02,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:02,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:02,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:02,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:02,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:02,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:02,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:02,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:02,956 INFO L124 PetriNetUnfolderBase]: 158/598 cut-off events. [2024-11-17 07:45:02,957 INFO L125 PetriNetUnfolderBase]: For 1283/1351 co-relation queries the response was YES. [2024-11-17 07:45:02,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 598 events. 158/598 cut-off events. For 1283/1351 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3714 event pairs, 24 based on Foata normal form. 47/643 useless extension candidates. Maximal degree in co-relation 1836. Up to 213 conditions per place. [2024-11-17 07:45:02,961 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 47 selfloop transitions, 25 changer transitions 0/89 dead transitions. [2024-11-17 07:45:02,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 89 transitions, 689 flow [2024-11-17 07:45:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:45:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:45:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 216 transitions. [2024-11-17 07:45:02,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6171428571428571 [2024-11-17 07:45:02,962 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 340 flow. Second operand 10 states and 216 transitions. [2024-11-17 07:45:02,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 89 transitions, 689 flow [2024-11-17 07:45:02,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 89 transitions, 676 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:45:02,966 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 505 flow [2024-11-17 07:45:02,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=505, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-11-17 07:45:02,968 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 41 predicate places. [2024-11-17 07:45:02,968 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 505 flow [2024-11-17 07:45:02,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:02,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:02,969 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:02,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:45:02,971 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:02,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 700808403, now seen corresponding path program 1 times [2024-11-17 07:45:02,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125904908] [2024-11-17 07:45:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:03,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125904908] [2024-11-17 07:45:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125904908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000106957] [2024-11-17 07:45:03,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:03,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:03,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:03,048 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) [2024-11-17 07:45:03,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:45:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:03,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:45:03,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:03,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:45:03,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000106957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:03,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:45:03,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-17 07:45:03,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463090510] [2024-11-17 07:45:03,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:03,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:45:03,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:03,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:45:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:45:03,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-17 07:45:03,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 505 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:03,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:03,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-17 07:45:03,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:03,289 INFO L124 PetriNetUnfolderBase]: 318/885 cut-off events. [2024-11-17 07:45:03,290 INFO L125 PetriNetUnfolderBase]: For 3194/3233 co-relation queries the response was YES. [2024-11-17 07:45:03,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3337 conditions, 885 events. 318/885 cut-off events. For 3194/3233 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5758 event pairs, 63 based on Foata normal form. 42/893 useless extension candidates. Maximal degree in co-relation 3307. Up to 362 conditions per place. [2024-11-17 07:45:03,295 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 76 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2024-11-17 07:45:03,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 95 transitions, 947 flow [2024-11-17 07:45:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:45:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:45:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-17 07:45:03,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5785714285714286 [2024-11-17 07:45:03,296 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 505 flow. Second operand 4 states and 81 transitions. [2024-11-17 07:45:03,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 95 transitions, 947 flow [2024-11-17 07:45:03,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 95 transitions, 871 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-17 07:45:03,301 INFO L231 Difference]: Finished difference. Result has 70 places, 63 transitions, 469 flow [2024-11-17 07:45:03,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2024-11-17 07:45:03,302 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 38 predicate places. [2024-11-17 07:45:03,302 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 469 flow [2024-11-17 07:45:03,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:03,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:03,302 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 07:45:03,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:45:03,503 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 [2024-11-17 07:45:03,503 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:03,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:03,504 INFO L85 PathProgramCache]: Analyzing trace with hash 250224300, now seen corresponding path program 1 times [2024-11-17 07:45:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121874169] [2024-11-17 07:45:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:45:03,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:03,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121874169] [2024-11-17 07:45:03,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121874169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:03,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:03,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:03,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185456999] [2024-11-17 07:45:03,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:03,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:03,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:03,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:03,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-17 07:45:03,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:03,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:03,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-17 07:45:03,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:03,643 INFO L124 PetriNetUnfolderBase]: 287/868 cut-off events. [2024-11-17 07:45:03,644 INFO L125 PetriNetUnfolderBase]: For 2668/2692 co-relation queries the response was YES. [2024-11-17 07:45:03,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3148 conditions, 868 events. 287/868 cut-off events. For 2668/2692 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5608 event pairs, 54 based on Foata normal form. 41/902 useless extension candidates. Maximal degree in co-relation 3119. Up to 304 conditions per place. [2024-11-17 07:45:03,649 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 86 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2024-11-17 07:45:03,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 106 transitions, 1013 flow [2024-11-17 07:45:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:45:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:45:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-17 07:45:03,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5785714285714286 [2024-11-17 07:45:03,650 INFO L175 Difference]: Start difference. First operand has 70 places, 63 transitions, 469 flow. Second operand 4 states and 81 transitions. [2024-11-17 07:45:03,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 106 transitions, 1013 flow [2024-11-17 07:45:03,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 106 transitions, 1003 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:45:03,655 INFO L231 Difference]: Finished difference. Result has 70 places, 63 transitions, 475 flow [2024-11-17 07:45:03,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=475, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2024-11-17 07:45:03,656 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 38 predicate places. [2024-11-17 07:45:03,656 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 475 flow [2024-11-17 07:45:03,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:03,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:03,656 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:03,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:45:03,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:03,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1760851578, now seen corresponding path program 1 times [2024-11-17 07:45:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:03,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919127171] [2024-11-17 07:45:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:03,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919127171] [2024-11-17 07:45:03,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919127171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:03,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759737385] [2024-11-17 07:45:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:03,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:03,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:03,718 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) [2024-11-17 07:45:03,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:45:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:03,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:45:03,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:03,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:45:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:03,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759737385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:45:03,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:45:03,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:45:03,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071103599] [2024-11-17 07:45:03,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:45:03,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:45:03,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:03,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:45:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:45:03,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:03,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 475 flow. Second operand has 11 states, 11 states have (on average 18.09090909090909) internal successors, (199), 11 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:03,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:03,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:03,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:04,153 INFO L124 PetriNetUnfolderBase]: 261/976 cut-off events. [2024-11-17 07:45:04,153 INFO L125 PetriNetUnfolderBase]: For 4365/4398 co-relation queries the response was YES. [2024-11-17 07:45:04,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 976 events. 261/976 cut-off events. For 4365/4398 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6332 event pairs, 11 based on Foata normal form. 97/1072 useless extension candidates. Maximal degree in co-relation 3622. Up to 226 conditions per place. [2024-11-17 07:45:04,159 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 64 selfloop transitions, 71 changer transitions 0/151 dead transitions. [2024-11-17 07:45:04,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 151 transitions, 1499 flow [2024-11-17 07:45:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-17 07:45:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-17 07:45:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 469 transitions. [2024-11-17 07:45:04,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-11-17 07:45:04,161 INFO L175 Difference]: Start difference. First operand has 70 places, 63 transitions, 475 flow. Second operand 22 states and 469 transitions. [2024-11-17 07:45:04,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 151 transitions, 1499 flow [2024-11-17 07:45:04,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 151 transitions, 1466 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:45:04,167 INFO L231 Difference]: Finished difference. Result has 103 places, 112 transitions, 1271 flow [2024-11-17 07:45:04,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1271, PETRI_PLACES=103, PETRI_TRANSITIONS=112} [2024-11-17 07:45:04,168 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 71 predicate places. [2024-11-17 07:45:04,168 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 112 transitions, 1271 flow [2024-11-17 07:45:04,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.09090909090909) internal successors, (199), 11 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:04,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:04,168 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:04,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:45:04,369 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 [2024-11-17 07:45:04,369 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:04,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 747070478, now seen corresponding path program 1 times [2024-11-17 07:45:04,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:04,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161107848] [2024-11-17 07:45:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:04,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:04,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:04,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:04,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161107848] [2024-11-17 07:45:04,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161107848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:04,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278586194] [2024-11-17 07:45:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:04,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:04,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:04,433 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) [2024-11-17 07:45:04,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:45:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:04,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:45:04,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:04,573 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:45:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:04,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278586194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:45:04,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:45:04,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-17 07:45:04,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126538640] [2024-11-17 07:45:04,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:45:04,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:45:04,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:04,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:45:04,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:45:04,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:04,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 112 transitions, 1271 flow. Second operand has 14 states, 14 states have (on average 17.857142857142858) internal successors, (250), 14 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:04,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:04,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:05,249 INFO L124 PetriNetUnfolderBase]: 565/2206 cut-off events. [2024-11-17 07:45:05,250 INFO L125 PetriNetUnfolderBase]: For 21169/21283 co-relation queries the response was YES. [2024-11-17 07:45:05,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9008 conditions, 2206 events. 565/2206 cut-off events. For 21169/21283 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 18282 event pairs, 21 based on Foata normal form. 200/2405 useless extension candidates. Maximal degree in co-relation 8963. Up to 483 conditions per place. [2024-11-17 07:45:05,270 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 140 selfloop transitions, 165 changer transitions 0/321 dead transitions. [2024-11-17 07:45:05,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 321 transitions, 3999 flow [2024-11-17 07:45:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-17 07:45:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-17 07:45:05,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 729 transitions. [2024-11-17 07:45:05,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6311688311688312 [2024-11-17 07:45:05,273 INFO L175 Difference]: Start difference. First operand has 103 places, 112 transitions, 1271 flow. Second operand 33 states and 729 transitions. [2024-11-17 07:45:05,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 321 transitions, 3999 flow [2024-11-17 07:45:05,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 321 transitions, 3434 flow, removed 270 selfloop flow, removed 5 redundant places. [2024-11-17 07:45:05,314 INFO L231 Difference]: Finished difference. Result has 146 places, 222 transitions, 2853 flow [2024-11-17 07:45:05,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2853, PETRI_PLACES=146, PETRI_TRANSITIONS=222} [2024-11-17 07:45:05,315 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 114 predicate places. [2024-11-17 07:45:05,315 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 222 transitions, 2853 flow [2024-11-17 07:45:05,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.857142857142858) internal successors, (250), 14 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:05,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:05,315 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:05,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 07:45:05,516 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 [2024-11-17 07:45:05,517 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:05,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 205247416, now seen corresponding path program 1 times [2024-11-17 07:45:05,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:05,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294121863] [2024-11-17 07:45:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:05,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:05,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:05,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294121863] [2024-11-17 07:45:05,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294121863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:05,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573921442] [2024-11-17 07:45:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:05,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:05,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:05,582 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) [2024-11-17 07:45:05,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:45:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:05,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:45:05,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:05,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:45:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573921442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:45:05,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:45:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905879168] [2024-11-17 07:45:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:05,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:05,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:45:05,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-17 07:45:05,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 222 transitions, 2853 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:05,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:05,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-17 07:45:05,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:06,114 INFO L124 PetriNetUnfolderBase]: 763/2505 cut-off events. [2024-11-17 07:45:06,114 INFO L125 PetriNetUnfolderBase]: For 35184/35248 co-relation queries the response was YES. [2024-11-17 07:45:06,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12209 conditions, 2505 events. 763/2505 cut-off events. For 35184/35248 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 20575 event pairs, 101 based on Foata normal form. 113/2558 useless extension candidates. Maximal degree in co-relation 12147. Up to 963 conditions per place. [2024-11-17 07:45:06,136 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 275 selfloop transitions, 5 changer transitions 0/294 dead transitions. [2024-11-17 07:45:06,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 294 transitions, 4643 flow [2024-11-17 07:45:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:45:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:45:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-11-17 07:45:06,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5761904761904761 [2024-11-17 07:45:06,137 INFO L175 Difference]: Start difference. First operand has 146 places, 222 transitions, 2853 flow. Second operand 6 states and 121 transitions. [2024-11-17 07:45:06,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 294 transitions, 4643 flow [2024-11-17 07:45:06,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 294 transitions, 3782 flow, removed 372 selfloop flow, removed 12 redundant places. [2024-11-17 07:45:06,211 INFO L231 Difference]: Finished difference. Result has 138 places, 221 transitions, 2263 flow [2024-11-17 07:45:06,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2263, PETRI_PLACES=138, PETRI_TRANSITIONS=221} [2024-11-17 07:45:06,211 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 106 predicate places. [2024-11-17 07:45:06,211 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 221 transitions, 2263 flow [2024-11-17 07:45:06,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:06,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:06,212 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 07:45:06,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:45:06,412 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 [2024-11-17 07:45:06,412 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:06,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2067702913, now seen corresponding path program 1 times [2024-11-17 07:45:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018216725] [2024-11-17 07:45:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:45:06,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:06,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018216725] [2024-11-17 07:45:06,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018216725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:06,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:06,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:06,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150599696] [2024-11-17 07:45:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:06,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:06,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:06,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:06,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:06,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-17 07:45:06,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 221 transitions, 2263 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2024-11-17 07:45:06,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:06,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-17 07:45:06,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:06,814 INFO L124 PetriNetUnfolderBase]: 813/2729 cut-off events. [2024-11-17 07:45:06,814 INFO L125 PetriNetUnfolderBase]: For 31788/31881 co-relation queries the response was YES. [2024-11-17 07:45:06,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11701 conditions, 2729 events. 813/2729 cut-off events. For 31788/31881 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 22598 event pairs, 162 based on Foata normal form. 121/2777 useless extension candidates. Maximal degree in co-relation 11641. Up to 984 conditions per place. [2024-11-17 07:45:06,832 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 260 selfloop transitions, 6 changer transitions 0/279 dead transitions. [2024-11-17 07:45:06,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 279 transitions, 3505 flow [2024-11-17 07:45:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:45:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:45:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-11-17 07:45:06,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-17 07:45:06,833 INFO L175 Difference]: Start difference. First operand has 138 places, 221 transitions, 2263 flow. Second operand 4 states and 77 transitions. [2024-11-17 07:45:06,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 279 transitions, 3505 flow [2024-11-17 07:45:06,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 279 transitions, 3496 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:45:06,887 INFO L231 Difference]: Finished difference. Result has 137 places, 221 transitions, 2270 flow [2024-11-17 07:45:06,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2250, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2270, PETRI_PLACES=137, PETRI_TRANSITIONS=221} [2024-11-17 07:45:06,888 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 105 predicate places. [2024-11-17 07:45:06,888 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 221 transitions, 2270 flow [2024-11-17 07:45:06,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2024-11-17 07:45:06,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:06,888 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:06,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:45:06,889 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:06,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash 351107594, now seen corresponding path program 1 times [2024-11-17 07:45:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:06,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462807028] [2024-11-17 07:45:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:06,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:06,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:06,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462807028] [2024-11-17 07:45:06,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462807028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:06,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544265938] [2024-11-17 07:45:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:06,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:06,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:06,980 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) [2024-11-17 07:45:07,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:45:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:07,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 07:45:07,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:07,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:45:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:07,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544265938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:45:07,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:45:07,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:45:07,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528345087] [2024-11-17 07:45:07,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:45:07,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:45:07,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:07,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:45:07,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:45:07,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:07,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 221 transitions, 2270 flow. Second operand has 19 states, 19 states have (on average 17.842105263157894) internal successors, (339), 19 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:07,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:07,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:07,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:08,731 INFO L124 PetriNetUnfolderBase]: 1312/5184 cut-off events. [2024-11-17 07:45:08,732 INFO L125 PetriNetUnfolderBase]: For 126809/126881 co-relation queries the response was YES. [2024-11-17 07:45:08,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21523 conditions, 5184 events. 1312/5184 cut-off events. For 126809/126881 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 48551 event pairs, 14 based on Foata normal form. 469/5650 useless extension candidates. Maximal degree in co-relation 21464. Up to 973 conditions per place. [2024-11-17 07:45:08,768 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 237 selfloop transitions, 415 changer transitions 0/667 dead transitions. [2024-11-17 07:45:08,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 667 transitions, 8340 flow [2024-11-17 07:45:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-17 07:45:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-17 07:45:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1356 transitions. [2024-11-17 07:45:08,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6351288056206089 [2024-11-17 07:45:08,771 INFO L175 Difference]: Start difference. First operand has 137 places, 221 transitions, 2270 flow. Second operand 61 states and 1356 transitions. [2024-11-17 07:45:08,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 667 transitions, 8340 flow [2024-11-17 07:45:08,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 667 transitions, 8225 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-17 07:45:08,935 INFO L231 Difference]: Finished difference. Result has 231 places, 481 transitions, 7148 flow [2024-11-17 07:45:08,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2250, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7148, PETRI_PLACES=231, PETRI_TRANSITIONS=481} [2024-11-17 07:45:08,936 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 199 predicate places. [2024-11-17 07:45:08,936 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 481 transitions, 7148 flow [2024-11-17 07:45:08,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.842105263157894) internal successors, (339), 19 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:08,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:08,936 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 07:45:08,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 07:45:09,136 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 [2024-11-17 07:45:09,137 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:09,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2072197772, now seen corresponding path program 1 times [2024-11-17 07:45:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:09,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855732653] [2024-11-17 07:45:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855732653] [2024-11-17 07:45:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855732653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676033235] [2024-11-17 07:45:09,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:09,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:09,341 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) [2024-11-17 07:45:09,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:45:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:09,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 07:45:09,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:09,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:45:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:09,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676033235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:45:09,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:45:09,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2024-11-17 07:45:09,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100933621] [2024-11-17 07:45:09,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:45:09,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-17 07:45:09,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-17 07:45:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-17 07:45:09,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:09,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 481 transitions, 7148 flow. Second operand has 30 states, 30 states have (on average 17.666666666666668) internal successors, (530), 30 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:09,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:09,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:09,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:15,630 INFO L124 PetriNetUnfolderBase]: 4348/18130 cut-off events. [2024-11-17 07:45:15,631 INFO L125 PetriNetUnfolderBase]: For 1577806/1577941 co-relation queries the response was YES. [2024-11-17 07:45:15,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84938 conditions, 18130 events. 4348/18130 cut-off events. For 1577806/1577941 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 210306 event pairs, 18 based on Foata normal form. 1357/19485 useless extension candidates. Maximal degree in co-relation 84841. Up to 3825 conditions per place. [2024-11-17 07:45:15,814 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 609 selfloop transitions, 1334 changer transitions 0/1958 dead transitions. [2024-11-17 07:45:15,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1958 transitions, 31472 flow [2024-11-17 07:45:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-17 07:45:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2024-11-17 07:45:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 3144 transitions. [2024-11-17 07:45:15,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6556830031282586 [2024-11-17 07:45:15,822 INFO L175 Difference]: Start difference. First operand has 231 places, 481 transitions, 7148 flow. Second operand 137 states and 3144 transitions. [2024-11-17 07:45:15,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1958 transitions, 31472 flow [2024-11-17 07:45:17,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 1958 transitions, 25783 flow, removed 2815 selfloop flow, removed 9 redundant places. [2024-11-17 07:45:17,456 INFO L231 Difference]: Finished difference. Result has 443 places, 1448 transitions, 22129 flow [2024-11-17 07:45:17,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=5709, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22129, PETRI_PLACES=443, PETRI_TRANSITIONS=1448} [2024-11-17 07:45:17,457 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 411 predicate places. [2024-11-17 07:45:17,457 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 1448 transitions, 22129 flow [2024-11-17 07:45:17,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 17.666666666666668) internal successors, (530), 30 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:17,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:17,458 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:17,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:45:17,658 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 [2024-11-17 07:45:17,659 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:45:17,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2100961086, now seen corresponding path program 2 times [2024-11-17 07:45:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:17,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44374313] [2024-11-17 07:45:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:17,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:17,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44374313] [2024-11-17 07:45:17,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44374313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:45:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006074766] [2024-11-17 07:45:17,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:45:17,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:45:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:17,976 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) [2024-11-17 07:45:17,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:45:18,163 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:45:18,164 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:45:18,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-17 07:45:18,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:45:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:18,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:45:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:18,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006074766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:45:18,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:45:18,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-17 07:45:18,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157521767] [2024-11-17 07:45:18,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:45:18,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-17 07:45:18,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:18,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-17 07:45:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2024-11-17 07:45:18,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:45:18,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1448 transitions, 22129 flow. Second operand has 35 states, 35 states have (on average 17.914285714285715) internal successors, (627), 35 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:45:18,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:18,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:45:18,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:41,654 INFO L124 PetriNetUnfolderBase]: 13492/54146 cut-off events. [2024-11-17 07:45:41,654 INFO L125 PetriNetUnfolderBase]: For 16580062/16580193 co-relation queries the response was YES. [2024-11-17 07:45:43,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281444 conditions, 54146 events. 13492/54146 cut-off events. For 16580062/16580193 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 708822 event pairs, 323 based on Foata normal form. 2292/56418 useless extension candidates. Maximal degree in co-relation 281261. Up to 10385 conditions per place. [2024-11-17 07:45:43,720 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 783 selfloop transitions, 5760 changer transitions 0/6558 dead transitions. [2024-11-17 07:45:43,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 6558 transitions, 112372 flow [2024-11-17 07:45:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-17 07:45:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2024-11-17 07:45:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 3172 transitions. [2024-11-17 07:45:43,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625024630541872 [2024-11-17 07:45:43,727 INFO L175 Difference]: Start difference. First operand has 443 places, 1448 transitions, 22129 flow. Second operand 145 states and 3172 transitions. [2024-11-17 07:45:43,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 6558 transitions, 112372 flow [2024-11-17 07:46:09,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 6558 transitions, 87948 flow, removed 12087 selfloop flow, removed 23 redundant places. [2024-11-17 07:46:09,564 INFO L231 Difference]: Finished difference. Result has 654 places, 6170 transitions, 92417 flow [2024-11-17 07:46:09,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17843, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92417, PETRI_PLACES=654, PETRI_TRANSITIONS=6170} [2024-11-17 07:46:09,565 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 622 predicate places. [2024-11-17 07:46:09,566 INFO L471 AbstractCegarLoop]: Abstraction has has 654 places, 6170 transitions, 92417 flow [2024-11-17 07:46:09,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 17.914285714285715) internal successors, (627), 35 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:09,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:09,566 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 07:46:09,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:46:09,766 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 [2024-11-17 07:46:09,767 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:46:09,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1776606714, now seen corresponding path program 2 times [2024-11-17 07:46:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497939142] [2024-11-17 07:46:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497939142] [2024-11-17 07:46:10,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497939142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820782684] [2024-11-17 07:46:10,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:46:10,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:10,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:10,095 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) [2024-11-17 07:46:10,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:46:10,199 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:46:10,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:46:10,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 07:46:10,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:46:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820782684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:46:10,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:46:10,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 40 [2024-11-17 07:46:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682211678] [2024-11-17 07:46:10,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:46:10,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-17 07:46:10,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:10,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-17 07:46:10,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=1212, Unknown=0, NotChecked=0, Total=1722 [2024-11-17 07:46:10,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2024-11-17 07:46:10,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 6170 transitions, 92417 flow. Second operand has 42 states, 42 states have (on average 17.761904761904763) internal successors, (746), 42 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:10,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:10,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2024-11-17 07:46:10,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand