./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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 0.3.0-?-e2fb8be-m [2025-03-09 06:32:38,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:32:38,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:32:38,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:32:38,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:32:38,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:32:38,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:32:38,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:32:38,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:32:38,573 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:32:38,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:32:38,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:32:38,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:32:38,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:32:38,574 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:32:38,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:32:38,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:32:38,576 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:32:38,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:32:38,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:32:38,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:32:38,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:32:38,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:32:38,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:32:38,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:32:38,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 [2025-03-09 06:32:38,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:32:38,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:32:38,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:32:38,785 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:32:38,785 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:32:38,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-03-09 06:32:39,916 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89af9751/fab54b3f71d54d17bff3e02715c9b915/FLAG61c9c3212 [2025-03-09 06:32:40,211 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:32:40,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-03-09 06:32:40,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89af9751/fab54b3f71d54d17bff3e02715c9b915/FLAG61c9c3212 [2025-03-09 06:32:40,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89af9751/fab54b3f71d54d17bff3e02715c9b915 [2025-03-09 06:32:40,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:32:40,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:32:40,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:32:40,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:32:40,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:32:40,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:40,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4be6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40, skipping insertion in model container [2025-03-09 06:32:40,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:40,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:32:40,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:32:40,877 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:32:40,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:32:40,968 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:32:40,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40 WrapperNode [2025-03-09 06:32:40,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:32:40,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:32:40,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:32:40,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:32:40,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:40,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:40,994 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2025-03-09 06:32:40,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:32:40,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:32:40,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:32:40,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:32:40,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:40,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,014 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]. [2025-03-09 06:32:41,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,020 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:32:41,030 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:32:41,030 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:32:41,030 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:32:41,031 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (1/1) ... [2025-03-09 06:32:41,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:32:41,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:41,056 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) [2025-03-09 06:32:41,059 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 [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-03-09 06:32:41,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:32:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:32:41,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:32:41,076 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:32:41,178 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:32:41,179 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:32:41,322 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:32:41,322 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:32:41,485 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:32:41,485 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:32:41,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:32:41 BoogieIcfgContainer [2025-03-09 06:32:41,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:32:41,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:32:41,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:32:41,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:32:41,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:32:40" (1/3) ... [2025-03-09 06:32:41,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419a1e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:32:41, skipping insertion in model container [2025-03-09 06:32:41,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:32:40" (2/3) ... [2025-03-09 06:32:41,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419a1e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:32:41, skipping insertion in model container [2025-03-09 06:32:41,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:32:41" (3/3) ... [2025-03-09 06:32:41,494 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2025-03-09 06:32:41,505 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:32:41,506 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 29 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-09 06:32:41,507 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:32:41,537 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-09 06:32:41,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2025-03-09 06:32:41,583 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2025-03-09 06:32:41,585 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:32:41,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-03-09 06:32:41,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2025-03-09 06:32:41,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2025-03-09 06:32:41,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:32:41,601 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;@136d77b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:32:41,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-09 06:32:41,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:32:41,605 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-03-09 06:32:41,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:32:41,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:41,606 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 06:32:41,606 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)] === [2025-03-09 06:32:41,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash 319696671, now seen corresponding path program 1 times [2025-03-09 06:32:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:41,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920229731] [2025-03-09 06:32:41,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:41,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:41,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:32:41,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:32:41,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:41,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:41,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920229731] [2025-03-09 06:32:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920229731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:41,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:41,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:32:41,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805048908] [2025-03-09 06:32:41,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:41,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:32:41,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:41,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:32:41,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:32:41,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2025-03-09 06:32:41,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:32:41,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:41,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2025-03-09 06:32:41,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:41,898 INFO L124 PetriNetUnfolderBase]: 40/136 cut-off events. [2025-03-09 06:32:41,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:32:41,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 136 events. 40/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 571 event pairs, 4 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 212. Up to 66 conditions per place. [2025-03-09 06:32:41,902 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2025-03-09 06:32:41,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2025-03-09 06:32:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:32:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:32:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-03-09 06:32:41,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2025-03-09 06:32:41,913 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2025-03-09 06:32:41,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2025-03-09 06:32:41,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:32:41,919 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2025-03-09 06:32:41,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2025-03-09 06:32:41,923 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2025-03-09 06:32:41,924 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2025-03-09 06:32:41,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:32:41,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:41,925 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:32:41,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:32:41,926 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)] === [2025-03-09 06:32:41,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1321016772, now seen corresponding path program 1 times [2025-03-09 06:32:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:41,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516172050] [2025-03-09 06:32:41,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:41,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:41,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:32:42,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:32:42,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:42,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:42,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516172050] [2025-03-09 06:32:42,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516172050] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:42,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:42,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:32:42,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914662968] [2025-03-09 06:32:42,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:42,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:32:42,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:42,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:32:42,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:32:42,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:42,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-03-09 06:32:42,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:42,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:42,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:42,191 INFO L124 PetriNetUnfolderBase]: 54/162 cut-off events. [2025-03-09 06:32:42,191 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-09 06:32:42,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 162 events. 54/162 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 723 event pairs, 12 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 312. Up to 89 conditions per place. [2025-03-09 06:32:42,193 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 22 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2025-03-09 06:32:42,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 168 flow [2025-03-09 06:32:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:32:42,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:32:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2025-03-09 06:32:42,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6533333333333333 [2025-03-09 06:32:42,195 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 98 transitions. [2025-03-09 06:32:42,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 168 flow [2025-03-09 06:32:42,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:32:42,196 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2025-03-09 06:32:42,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-03-09 06:32:42,197 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2025-03-09 06:32:42,197 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2025-03-09 06:32:42,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-03-09 06:32:42,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:42,197 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:42,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:32:42,197 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)] === [2025-03-09 06:32:42,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2009133192, now seen corresponding path program 1 times [2025-03-09 06:32:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:42,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404068463] [2025-03-09 06:32:42,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:42,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:42,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:32:42,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:32:42,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:42,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:42,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404068463] [2025-03-09 06:32:42,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404068463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:42,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:42,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736752545] [2025-03-09 06:32:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:42,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:32:42,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:42,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:32:42,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:32:42,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2025-03-09 06:32:42,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2025-03-09 06:32:42,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:42,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2025-03-09 06:32:42,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:42,397 INFO L124 PetriNetUnfolderBase]: 101/255 cut-off events. [2025-03-09 06:32:42,397 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2025-03-09 06:32:42,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 255 events. 101/255 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1213 event pairs, 22 based on Foata normal form. 17/235 useless extension candidates. Maximal degree in co-relation 592. Up to 132 conditions per place. [2025-03-09 06:32:42,400 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 42 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2025-03-09 06:32:42,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 291 flow [2025-03-09 06:32:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:32:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:32:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-03-09 06:32:42,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-03-09 06:32:42,402 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 81 transitions. [2025-03-09 06:32:42,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 291 flow [2025-03-09 06:32:42,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:32:42,404 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2025-03-09 06:32:42,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2025-03-09 06:32:42,406 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2025-03-09 06:32:42,406 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2025-03-09 06:32:42,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2025-03-09 06:32:42,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:42,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:42,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:32:42,406 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)] === [2025-03-09 06:32:42,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash -745256734, now seen corresponding path program 1 times [2025-03-09 06:32:42,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:42,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402443738] [2025-03-09 06:32:42,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:42,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:42,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:32:42,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:32:42,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:42,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:42,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402443738] [2025-03-09 06:32:42,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402443738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:42,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:42,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:42,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577863901] [2025-03-09 06:32:42,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:42,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:32:42,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:42,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:32:42,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:32:42,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:42,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-09 06:32:42,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:42,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:42,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:42,656 INFO L124 PetriNetUnfolderBase]: 120/380 cut-off events. [2025-03-09 06:32:42,656 INFO L125 PetriNetUnfolderBase]: For 225/246 co-relation queries the response was YES. [2025-03-09 06:32:42,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 380 events. 120/380 cut-off events. For 225/246 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2097 event pairs, 19 based on Foata normal form. 16/340 useless extension candidates. Maximal degree in co-relation 946. Up to 104 conditions per place. [2025-03-09 06:32:42,658 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 10 changer transitions 0/65 dead transitions. [2025-03-09 06:32:42,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 65 transitions, 363 flow [2025-03-09 06:32:42,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:32:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:32:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2025-03-09 06:32:42,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2025-03-09 06:32:42,661 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 127 transitions. [2025-03-09 06:32:42,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 65 transitions, 363 flow [2025-03-09 06:32:42,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:32:42,665 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2025-03-09 06:32:42,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2025-03-09 06:32:42,666 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2025-03-09 06:32:42,667 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2025-03-09 06:32:42,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-09 06:32:42,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:42,667 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:42,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:32:42,667 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:32:42,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 992505416, now seen corresponding path program 1 times [2025-03-09 06:32:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:42,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974581313] [2025-03-09 06:32:42,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:42,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:42,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:32:42,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:32:42,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:42,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:42,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:42,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974581313] [2025-03-09 06:32:42,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974581313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:42,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:42,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:42,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842162825] [2025-03-09 06:32:42,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:42,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:32:42,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:42,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:32:42,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:32:42,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:42,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-09 06:32:42,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:42,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:42,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:42,824 INFO L124 PetriNetUnfolderBase]: 134/462 cut-off events. [2025-03-09 06:32:42,824 INFO L125 PetriNetUnfolderBase]: For 756/771 co-relation queries the response was YES. [2025-03-09 06:32:42,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 462 events. 134/462 cut-off events. For 756/771 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2697 event pairs, 20 based on Foata normal form. 27/469 useless extension candidates. Maximal degree in co-relation 1308. Up to 203 conditions per place. [2025-03-09 06:32:42,827 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 37 selfloop transitions, 20 changer transitions 0/70 dead transitions. [2025-03-09 06:32:42,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 70 transitions, 477 flow [2025-03-09 06:32:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:32:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:32:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2025-03-09 06:32:42,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2025-03-09 06:32:42,828 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 139 transitions. [2025-03-09 06:32:42,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 70 transitions, 477 flow [2025-03-09 06:32:42,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 465 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-03-09 06:32:42,831 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2025-03-09 06:32:42,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2025-03-09 06:32:42,832 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2025-03-09 06:32:42,832 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2025-03-09 06:32:42,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-09 06:32:42,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:42,832 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:42,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:32:42,832 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:32:42,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1279040070, now seen corresponding path program 1 times [2025-03-09 06:32:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114132104] [2025-03-09 06:32:42,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:42,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:32:42,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:32:42,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:42,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114132104] [2025-03-09 06:32:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114132104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:42,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:42,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:42,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63858047] [2025-03-09 06:32:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:42,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:32:42,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:42,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:32:42,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:32:42,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2025-03-09 06:32:42,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2025-03-09 06:32:42,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:42,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2025-03-09 06:32:42,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:42,992 INFO L124 PetriNetUnfolderBase]: 186/568 cut-off events. [2025-03-09 06:32:42,992 INFO L125 PetriNetUnfolderBase]: For 1597/1673 co-relation queries the response was YES. [2025-03-09 06:32:42,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 568 events. 186/568 cut-off events. For 1597/1673 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3522 event pairs, 52 based on Foata normal form. 47/593 useless extension candidates. Maximal degree in co-relation 1902. Up to 282 conditions per place. [2025-03-09 06:32:42,995 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 58 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2025-03-09 06:32:42,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 77 transitions, 667 flow [2025-03-09 06:32:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:32:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:32:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-03-09 06:32:42,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2025-03-09 06:32:42,996 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 82 transitions. [2025-03-09 06:32:42,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 77 transitions, 667 flow [2025-03-09 06:32:43,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 642 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-09 06:32:43,004 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2025-03-09 06:32:43,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2025-03-09 06:32:43,004 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2025-03-09 06:32:43,005 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2025-03-09 06:32:43,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2025-03-09 06:32:43,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:43,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:43,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:32:43,006 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)] === [2025-03-09 06:32:43,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash 148417410, now seen corresponding path program 1 times [2025-03-09 06:32:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006466412] [2025-03-09 06:32:43,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:43,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:43,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:32:43,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:32:43,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:43,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:43,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:43,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006466412] [2025-03-09 06:32:43,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006466412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:43,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:43,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:32:43,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887427022] [2025-03-09 06:32:43,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:43,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:32:43,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:43,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:32:43,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:32:43,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:43,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-09 06:32:43,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:43,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:43,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:43,203 INFO L124 PetriNetUnfolderBase]: 124/443 cut-off events. [2025-03-09 06:32:43,203 INFO L125 PetriNetUnfolderBase]: For 1201/1218 co-relation queries the response was YES. [2025-03-09 06:32:43,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 443 events. 124/443 cut-off events. For 1201/1218 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2693 event pairs, 29 based on Foata normal form. 38/469 useless extension candidates. Maximal degree in co-relation 1473. Up to 228 conditions per place. [2025-03-09 06:32:43,207 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 40 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2025-03-09 06:32:43,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 516 flow [2025-03-09 06:32:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 06:32:43,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 06:32:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2025-03-09 06:32:43,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2025-03-09 06:32:43,208 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 8 states and 137 transitions. [2025-03-09 06:32:43,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 516 flow [2025-03-09 06:32:43,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 491 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-09 06:32:43,213 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 334 flow [2025-03-09 06:32:43,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2025-03-09 06:32:43,214 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2025-03-09 06:32:43,214 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 334 flow [2025-03-09 06:32:43,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-09 06:32:43,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:43,214 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:43,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:32:43,214 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)] === [2025-03-09 06:32:43,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:43,215 INFO L85 PathProgramCache]: Analyzing trace with hash -249789703, now seen corresponding path program 1 times [2025-03-09 06:32:43,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867949199] [2025-03-09 06:32:43,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:43,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:43,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:32:43,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:32:43,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:43,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:43,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:43,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867949199] [2025-03-09 06:32:43,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867949199] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:43,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:43,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:32:43,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8271972] [2025-03-09 06:32:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:43,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:32:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:43,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:32:43,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:32:43,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:43,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-09 06:32:43,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:43,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:43,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:43,403 INFO L124 PetriNetUnfolderBase]: 158/540 cut-off events. [2025-03-09 06:32:43,403 INFO L125 PetriNetUnfolderBase]: For 1265/1308 co-relation queries the response was YES. [2025-03-09 06:32:43,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 540 events. 158/540 cut-off events. For 1265/1308 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3265 event pairs, 20 based on Foata normal form. 39/571 useless extension candidates. Maximal degree in co-relation 1782. Up to 213 conditions per place. [2025-03-09 06:32:43,407 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 47 selfloop transitions, 25 changer transitions 0/86 dead transitions. [2025-03-09 06:32:43,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 86 transitions, 687 flow [2025-03-09 06:32:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:32:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:32:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2025-03-09 06:32:43,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2025-03-09 06:32:43,411 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 334 flow. Second operand 10 states and 186 transitions. [2025-03-09 06:32:43,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 86 transitions, 687 flow [2025-03-09 06:32:43,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 86 transitions, 674 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:32:43,416 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 499 flow [2025-03-09 06:32:43,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-03-09 06:32:43,417 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2025-03-09 06:32:43,418 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 499 flow [2025-03-09 06:32:43,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-09 06:32:43,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:43,418 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:43,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:32:43,418 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)] === [2025-03-09 06:32:43,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1000128402, now seen corresponding path program 1 times [2025-03-09 06:32:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446524802] [2025-03-09 06:32:43,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:43,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:32:43,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:32:43,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:43,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:43,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446524802] [2025-03-09 06:32:43,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446524802] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607642677] [2025-03-09 06:32:43,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:43,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:43,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:43,478 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) [2025-03-09 06:32:43,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:32:43,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:32:43,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:32:43,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:43,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:43,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:32:43,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:43,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:32:43,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607642677] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:43,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:32:43,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-09 06:32:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959757282] [2025-03-09 06:32:43,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:43,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:32:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:43,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:32:43,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 06:32:43,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2025-03-09 06:32:43,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 499 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-09 06:32:43,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:43,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2025-03-09 06:32:43,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:43,748 INFO L124 PetriNetUnfolderBase]: 318/807 cut-off events. [2025-03-09 06:32:43,748 INFO L125 PetriNetUnfolderBase]: For 3275/3310 co-relation queries the response was YES. [2025-03-09 06:32:43,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3269 conditions, 807 events. 318/807 cut-off events. For 3275/3310 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4930 event pairs, 52 based on Foata normal form. 41/811 useless extension candidates. Maximal degree in co-relation 3239. Up to 362 conditions per place. [2025-03-09 06:32:43,755 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 76 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2025-03-09 06:32:43,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 92 transitions, 945 flow [2025-03-09 06:32:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:32:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:32:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2025-03-09 06:32:43,757 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2025-03-09 06:32:43,757 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 499 flow. Second operand 4 states and 69 transitions. [2025-03-09 06:32:43,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 92 transitions, 945 flow [2025-03-09 06:32:43,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 869 flow, removed 24 selfloop flow, removed 5 redundant places. [2025-03-09 06:32:43,765 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 463 flow [2025-03-09 06:32:43,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2025-03-09 06:32:43,766 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2025-03-09 06:32:43,766 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 463 flow [2025-03-09 06:32:43,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-09 06:32:43,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:43,767 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:32:43,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:32:43,972 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 [2025-03-09 06:32:43,972 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)] === [2025-03-09 06:32:43,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 939209652, now seen corresponding path program 1 times [2025-03-09 06:32:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:43,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534004544] [2025-03-09 06:32:43,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:43,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:32:43,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:32:43,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:43,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:32:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534004544] [2025-03-09 06:32:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534004544] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:44,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:44,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99807857] [2025-03-09 06:32:44,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:44,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:32:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:44,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:32:44,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:32:44,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2025-03-09 06:32:44,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-03-09 06:32:44,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:44,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2025-03-09 06:32:44,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:44,143 INFO L124 PetriNetUnfolderBase]: 286/761 cut-off events. [2025-03-09 06:32:44,143 INFO L125 PetriNetUnfolderBase]: For 2623/2653 co-relation queries the response was YES. [2025-03-09 06:32:44,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 761 events. 286/761 cut-off events. For 2623/2653 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4583 event pairs, 36 based on Foata normal form. 44/801 useless extension candidates. Maximal degree in co-relation 2991. Up to 305 conditions per place. [2025-03-09 06:32:44,148 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 86 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2025-03-09 06:32:44,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 1011 flow [2025-03-09 06:32:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:32:44,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:32:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2025-03-09 06:32:44,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2025-03-09 06:32:44,149 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 463 flow. Second operand 4 states and 69 transitions. [2025-03-09 06:32:44,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 1011 flow [2025-03-09 06:32:44,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 103 transitions, 1001 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:32:44,155 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 469 flow [2025-03-09 06:32:44,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2025-03-09 06:32:44,156 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2025-03-09 06:32:44,156 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 469 flow [2025-03-09 06:32:44,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-03-09 06:32:44,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:44,156 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:44,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:32:44,156 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)] === [2025-03-09 06:32:44,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:44,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1170834366, now seen corresponding path program 1 times [2025-03-09 06:32:44,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:44,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924120934] [2025-03-09 06:32:44,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:44,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:44,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:32:44,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:32:44,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:44,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924120934] [2025-03-09 06:32:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924120934] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041968485] [2025-03-09 06:32:44,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:44,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:44,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:44,232 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) [2025-03-09 06:32:44,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:32:44,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:32:44,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:32:44,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:44,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:44,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:32:44,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:44,345 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:32:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:44,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041968485] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:32:44,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:32:44,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 06:32:44,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359206347] [2025-03-09 06:32:44,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:32:44,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 06:32:44,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:44,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 06:32:44,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:32:44,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:44,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 469 flow. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2025-03-09 06:32:44,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:44,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:44,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:44,646 INFO L124 PetriNetUnfolderBase]: 261/880 cut-off events. [2025-03-09 06:32:44,646 INFO L125 PetriNetUnfolderBase]: For 4416/4444 co-relation queries the response was YES. [2025-03-09 06:32:44,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3564 conditions, 880 events. 261/880 cut-off events. For 4416/4444 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5498 event pairs, 11 based on Foata normal form. 94/970 useless extension candidates. Maximal degree in co-relation 3535. Up to 226 conditions per place. [2025-03-09 06:32:44,651 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 64 selfloop transitions, 71 changer transitions 0/148 dead transitions. [2025-03-09 06:32:44,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 148 transitions, 1497 flow [2025-03-09 06:32:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-09 06:32:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-09 06:32:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 403 transitions. [2025-03-09 06:32:44,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6106060606060606 [2025-03-09 06:32:44,657 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 469 flow. Second operand 22 states and 403 transitions. [2025-03-09 06:32:44,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 148 transitions, 1497 flow [2025-03-09 06:32:44,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 148 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:32:44,664 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1265 flow [2025-03-09 06:32:44,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1265, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2025-03-09 06:32:44,665 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2025-03-09 06:32:44,665 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1265 flow [2025-03-09 06:32:44,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2025-03-09 06:32:44,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:44,665 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:44,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 06:32:44,869 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 [2025-03-09 06:32:44,869 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)] === [2025-03-09 06:32:44,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash -440637797, now seen corresponding path program 1 times [2025-03-09 06:32:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199253262] [2025-03-09 06:32:44,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:44,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:32:44,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:32:44,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:44,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199253262] [2025-03-09 06:32:44,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199253262] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271451812] [2025-03-09 06:32:44,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:44,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:44,929 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) [2025-03-09 06:32:44,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:32:45,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:32:45,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:32:45,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:45,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:45,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:32:45,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:45,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:32:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271451812] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:32:45,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:32:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-03-09 06:32:45,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818803839] [2025-03-09 06:32:45,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:32:45,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 06:32:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:45,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 06:32:45,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-09 06:32:45,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:45,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1265 flow. Second operand has 14 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 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) [2025-03-09 06:32:45,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:45,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:45,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:45,618 INFO L124 PetriNetUnfolderBase]: 565/1987 cut-off events. [2025-03-09 06:32:45,618 INFO L125 PetriNetUnfolderBase]: For 21221/21319 co-relation queries the response was YES. [2025-03-09 06:32:45,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 1987 events. 565/1987 cut-off events. For 21221/21319 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 15749 event pairs, 21 based on Foata normal form. 195/2176 useless extension candidates. Maximal degree in co-relation 8791. Up to 483 conditions per place. [2025-03-09 06:32:45,631 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 140 selfloop transitions, 165 changer transitions 0/318 dead transitions. [2025-03-09 06:32:45,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 318 transitions, 4019 flow [2025-03-09 06:32:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-09 06:32:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2025-03-09 06:32:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 630 transitions. [2025-03-09 06:32:45,633 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2025-03-09 06:32:45,633 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1265 flow. Second operand 33 states and 630 transitions. [2025-03-09 06:32:45,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 318 transitions, 4019 flow [2025-03-09 06:32:45,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 318 transitions, 3454 flow, removed 270 selfloop flow, removed 5 redundant places. [2025-03-09 06:32:45,663 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2847 flow [2025-03-09 06:32:45,663 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2847, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2025-03-09 06:32:45,663 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2025-03-09 06:32:45,663 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2847 flow [2025-03-09 06:32:45,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 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) [2025-03-09 06:32:45,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:45,664 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:45,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 06:32:45,864 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 [2025-03-09 06:32:45,864 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)] === [2025-03-09 06:32:45,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1103909379, now seen corresponding path program 1 times [2025-03-09 06:32:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:45,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231189121] [2025-03-09 06:32:45,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:45,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:45,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:32:45,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:32:45,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:45,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:45,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:45,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:45,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231189121] [2025-03-09 06:32:45,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231189121] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:45,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640218455] [2025-03-09 06:32:45,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:45,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:45,936 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) [2025-03-09 06:32:45,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:32:46,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:32:46,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:32:46,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:46,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:46,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:32:46,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:46,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:32:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640218455] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:46,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:32:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 06:32:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088623249] [2025-03-09 06:32:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:46,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:32:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:46,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:32:46,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:32:46,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2025-03-09 06:32:46,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2847 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2025-03-09 06:32:46,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:46,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2025-03-09 06:32:46,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:46,361 INFO L124 PetriNetUnfolderBase]: 686/2133 cut-off events. [2025-03-09 06:32:46,361 INFO L125 PetriNetUnfolderBase]: For 32176/32230 co-relation queries the response was YES. [2025-03-09 06:32:46,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11172 conditions, 2133 events. 686/2133 cut-off events. For 32176/32230 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16707 event pairs, 75 based on Foata normal form. 103/2168 useless extension candidates. Maximal degree in co-relation 11110. Up to 800 conditions per place. [2025-03-09 06:32:46,378 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 274 selfloop transitions, 5 changer transitions 0/291 dead transitions. [2025-03-09 06:32:46,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 291 transitions, 4635 flow [2025-03-09 06:32:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:32:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:32:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-03-09 06:32:46,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-03-09 06:32:46,380 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2847 flow. Second operand 6 states and 108 transitions. [2025-03-09 06:32:46,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 291 transitions, 4635 flow [2025-03-09 06:32:46,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 291 transitions, 3774 flow, removed 372 selfloop flow, removed 12 redundant places. [2025-03-09 06:32:46,449 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2257 flow [2025-03-09 06:32:46,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2025-03-09 06:32:46,449 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2025-03-09 06:32:46,449 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2257 flow [2025-03-09 06:32:46,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2025-03-09 06:32:46,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:46,450 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:32:46,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 06:32:46,650 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 [2025-03-09 06:32:46,650 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)] === [2025-03-09 06:32:46,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:46,650 INFO L85 PathProgramCache]: Analyzing trace with hash 138547921, now seen corresponding path program 1 times [2025-03-09 06:32:46,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:46,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712801139] [2025-03-09 06:32:46,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:46,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:46,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:32:46,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:32:46,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:46,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:32:46,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:46,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712801139] [2025-03-09 06:32:46,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712801139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:32:46,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:32:46,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:32:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648646364] [2025-03-09 06:32:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:32:46,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:32:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:46,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:32:46,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:32:46,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2025-03-09 06:32:46,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2257 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:32:46,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:46,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2025-03-09 06:32:46,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:46,971 INFO L124 PetriNetUnfolderBase]: 735/2201 cut-off events. [2025-03-09 06:32:46,971 INFO L125 PetriNetUnfolderBase]: For 28385/28446 co-relation queries the response was YES. [2025-03-09 06:32:46,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10479 conditions, 2201 events. 735/2201 cut-off events. For 28385/28446 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 17048 event pairs, 87 based on Foata normal form. 110/2281 useless extension candidates. Maximal degree in co-relation 10419. Up to 983 conditions per place. [2025-03-09 06:32:46,986 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 259 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2025-03-09 06:32:46,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 276 transitions, 3497 flow [2025-03-09 06:32:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:32:46,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:32:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2025-03-09 06:32:46,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-03-09 06:32:46,988 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2257 flow. Second operand 4 states and 68 transitions. [2025-03-09 06:32:46,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 276 transitions, 3497 flow [2025-03-09 06:32:47,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 276 transitions, 3488 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:32:47,033 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2264 flow [2025-03-09 06:32:47,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2264, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2025-03-09 06:32:47,034 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2025-03-09 06:32:47,034 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2264 flow [2025-03-09 06:32:47,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:32:47,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:47,034 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:47,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 06:32:47,034 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)] === [2025-03-09 06:32:47,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash -774308433, now seen corresponding path program 1 times [2025-03-09 06:32:47,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:47,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875204649] [2025-03-09 06:32:47,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:47,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 06:32:47,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 06:32:47,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:47,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:47,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:47,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875204649] [2025-03-09 06:32:47,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875204649] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:47,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292780014] [2025-03-09 06:32:47,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:47,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:47,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:47,140 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) [2025-03-09 06:32:47,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:32:47,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 06:32:47,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 06:32:47,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:47,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:47,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 06:32:47,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:47,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:32:47,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292780014] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:32:47,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:32:47,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-09 06:32:47,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050676476] [2025-03-09 06:32:47,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:32:47,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:32:47,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:47,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:32:47,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:32:47,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:47,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2264 flow. Second operand has 19 states, 19 states have (on average 14.789473684210526) internal successors, (281), 19 states have internal predecessors, (281), 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) [2025-03-09 06:32:47,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:47,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:47,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:48,604 INFO L124 PetriNetUnfolderBase]: 1312/4645 cut-off events. [2025-03-09 06:32:48,604 INFO L125 PetriNetUnfolderBase]: For 126881/126957 co-relation queries the response was YES. [2025-03-09 06:32:48,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21108 conditions, 4645 events. 1312/4645 cut-off events. For 126881/126957 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 41532 event pairs, 14 based on Foata normal form. 473/5110 useless extension candidates. Maximal degree in co-relation 21049. Up to 973 conditions per place. [2025-03-09 06:32:48,635 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 237 selfloop transitions, 415 changer transitions 0/664 dead transitions. [2025-03-09 06:32:48,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 664 transitions, 8388 flow [2025-03-09 06:32:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-09 06:32:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-09 06:32:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1173 transitions. [2025-03-09 06:32:48,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409836065573771 [2025-03-09 06:32:48,638 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2264 flow. Second operand 61 states and 1173 transitions. [2025-03-09 06:32:48,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 664 transitions, 8388 flow [2025-03-09 06:32:48,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 664 transitions, 8273 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-03-09 06:32:48,762 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7142 flow [2025-03-09 06:32:48,763 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7142, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2025-03-09 06:32:48,763 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2025-03-09 06:32:48,763 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7142 flow [2025-03-09 06:32:48,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.789473684210526) internal successors, (281), 19 states have internal predecessors, (281), 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) [2025-03-09 06:32:48,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:48,763 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:32:48,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:32:48,964 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 [2025-03-09 06:32:48,964 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)] === [2025-03-09 06:32:48,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1800770199, now seen corresponding path program 1 times [2025-03-09 06:32:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:48,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675668972] [2025-03-09 06:32:48,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:48,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 06:32:48,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 06:32:48,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:48,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:49,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675668972] [2025-03-09 06:32:49,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675668972] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:49,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683776932] [2025-03-09 06:32:49,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:32:49,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:49,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:49,185 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) [2025-03-09 06:32:49,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:32:49,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 06:32:49,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 06:32:49,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:32:49,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:49,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 06:32:49,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:49,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:32:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:49,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683776932] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:32:49,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:32:49,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2025-03-09 06:32:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402319559] [2025-03-09 06:32:49,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:32:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-09 06:32:49,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:49,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-09 06:32:49,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2025-03-09 06:32:49,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:49,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7142 flow. Second operand has 30 states, 30 states have (on average 14.666666666666666) internal successors, (440), 30 states have internal predecessors, (440), 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) [2025-03-09 06:32:49,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:49,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:49,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:32:54,337 INFO L124 PetriNetUnfolderBase]: 4348/16213 cut-off events. [2025-03-09 06:32:54,337 INFO L125 PetriNetUnfolderBase]: For 1578401/1578540 co-relation queries the response was YES. [2025-03-09 06:32:54,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83580 conditions, 16213 events. 4348/16213 cut-off events. For 1578401/1578540 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 179028 event pairs, 18 based on Foata normal form. 1364/17570 useless extension candidates. Maximal degree in co-relation 83483. Up to 3825 conditions per place. [2025-03-09 06:32:54,568 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 609 selfloop transitions, 1334 changer transitions 0/1955 dead transitions. [2025-03-09 06:32:54,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1955 transitions, 31652 flow [2025-03-09 06:32:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2025-03-09 06:32:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2025-03-09 06:32:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2733 transitions. [2025-03-09 06:32:54,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6649635036496351 [2025-03-09 06:32:54,578 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7142 flow. Second operand 137 states and 2733 transitions. [2025-03-09 06:32:54,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1955 transitions, 31652 flow [2025-03-09 06:32:56,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 1955 transitions, 25963 flow, removed 2815 selfloop flow, removed 9 redundant places. [2025-03-09 06:32:56,238 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22123 flow [2025-03-09 06:32:56,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5703, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22123, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2025-03-09 06:32:56,238 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2025-03-09 06:32:56,238 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22123 flow [2025-03-09 06:32:56,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 14.666666666666666) internal successors, (440), 30 states have internal predecessors, (440), 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) [2025-03-09 06:32:56,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:32:56,239 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:32:56,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:32:56,439 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 [2025-03-09 06:32:56,440 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)] === [2025-03-09 06:32:56,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:32:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2050084101, now seen corresponding path program 2 times [2025-03-09 06:32:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:32:56,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769932560] [2025-03-09 06:32:56,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:32:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:32:56,460 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 68 statements into 2 equivalence classes. [2025-03-09 06:32:56,474 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 68 of 68 statements. [2025-03-09 06:32:56,474 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:32:56,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:56,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:32:56,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769932560] [2025-03-09 06:32:56,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769932560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:32:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697700232] [2025-03-09 06:32:56,757 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:32:56,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:32:56,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:32:56,759 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) [2025-03-09 06:32:56,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:32:56,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 68 statements into 2 equivalence classes. [2025-03-09 06:32:56,873 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 68 of 68 statements. [2025-03-09 06:32:56,873 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:32:56,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:32:56,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-09 06:32:56,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:32:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:56,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:32:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:32:57,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697700232] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:32:57,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:32:57,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2025-03-09 06:32:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633241952] [2025-03-09 06:32:57,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:32:57,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-09 06:32:57,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:32:57,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-09 06:32:57,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2025-03-09 06:32:57,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:32:57,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22123 flow. Second operand has 35 states, 35 states have (on average 14.914285714285715) internal successors, (522), 35 states have internal predecessors, (522), 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) [2025-03-09 06:32:57,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:32:57,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:32:57,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:15,052 INFO L124 PetriNetUnfolderBase]: 13492/48897 cut-off events. [2025-03-09 06:33:15,053 INFO L125 PetriNetUnfolderBase]: For 16580807/16580948 co-relation queries the response was YES. [2025-03-09 06:33:16,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277640 conditions, 48897 events. 13492/48897 cut-off events. For 16580807/16580948 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 615747 event pairs, 325 based on Foata normal form. 2302/51158 useless extension candidates. Maximal degree in co-relation 277457. Up to 10385 conditions per place. [2025-03-09 06:33:16,851 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 783 selfloop transitions, 5760 changer transitions 0/6555 dead transitions. [2025-03-09 06:33:16,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6555 transitions, 112476 flow [2025-03-09 06:33:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2025-03-09 06:33:16,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2025-03-09 06:33:16,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2737 transitions. [2025-03-09 06:33:16,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6291954022988506 [2025-03-09 06:33:16,854 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22123 flow. Second operand 145 states and 2737 transitions. [2025-03-09 06:33:16,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6555 transitions, 112476 flow [2025-03-09 06:33:41,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 6555 transitions, 88052 flow, removed 12087 selfloop flow, removed 23 redundant places. [2025-03-09 06:33:41,312 INFO L231 Difference]: Finished difference. Result has 651 places, 6167 transitions, 92411 flow [2025-03-09 06:33:41,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=17837, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92411, PETRI_PLACES=651, PETRI_TRANSITIONS=6167} [2025-03-09 06:33:41,314 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 622 predicate places. [2025-03-09 06:33:41,314 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 6167 transitions, 92411 flow [2025-03-09 06:33:41,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.914285714285715) internal successors, (522), 35 states have internal predecessors, (522), 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) [2025-03-09 06:33:41,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:41,315 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:33:41,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 06:33:41,515 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 [2025-03-09 06:33:41,515 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)] === [2025-03-09 06:33:41,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:41,516 INFO L85 PathProgramCache]: Analyzing trace with hash -656256951, now seen corresponding path program 2 times [2025-03-09 06:33:41,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:41,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922109630] [2025-03-09 06:33:41,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:33:41,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:41,528 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-09 06:33:41,542 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 06:33:41,542 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:33:41,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:41,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922109630] [2025-03-09 06:33:41,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922109630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:33:41,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045634163] [2025-03-09 06:33:41,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:33:41,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:41,789 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) [2025-03-09 06:33:41,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 06:33:41,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-09 06:33:41,903 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 06:33:41,903 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:33:41,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:41,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 06:33:41,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:33:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:41,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:33:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045634163] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:33:42,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:33:42,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2025-03-09 06:33:42,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863699442] [2025-03-09 06:33:42,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:33:42,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-09 06:33:42,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:42,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-09 06:33:42,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2025-03-09 06:33:42,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-03-09 06:33:42,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 6167 transitions, 92411 flow. Second operand has 41 states, 41 states have (on average 14.78048780487805) internal successors, (606), 41 states have internal predecessors, (606), 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) [2025-03-09 06:33:42,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:42,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-03-09 06:33:42,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand