./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:50:14,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:50:14,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:50:14,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:50:14,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:50:14,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:50:14,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:50:14,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:50:14,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:50:14,743 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:50:14,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:50:14,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:50:14,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:50:14,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:50:14,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:50:14,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:50:14,745 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:50:14,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:50:14,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:50:14,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:50:14,746 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-jdk21/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 -> 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 [2025-02-06 18:50:14,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:50:14,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:50:14,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:50:14,992 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:50:14,993 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:50:14,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2025-02-06 18:50:16,284 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f8b0fd4b/e097ec5ff07d45b0927c13fabff9f433/FLAG863f3850d [2025-02-06 18:50:16,516 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:50:16,517 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2025-02-06 18:50:16,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f8b0fd4b/e097ec5ff07d45b0927c13fabff9f433/FLAG863f3850d [2025-02-06 18:50:16,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f8b0fd4b/e097ec5ff07d45b0927c13fabff9f433 [2025-02-06 18:50:16,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:50:16,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:50:16,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:50:16,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:50:16,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:50:16,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4687e745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16, skipping insertion in model container [2025-02-06 18:50:16,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:50:16,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:50:16,730 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:50:16,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:50:16,758 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:50:16,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16 WrapperNode [2025-02-06 18:50:16,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:50:16,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:50:16,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:50:16,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:50:16,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,781 INFO L138 Inliner]: procedures = 19, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2025-02-06 18:50:16,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:50:16,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:50:16,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:50:16,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:50:16,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,805 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]. [2025-02-06 18:50:16,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,809 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:50:16,813 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:50:16,813 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:50:16,813 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:50:16,814 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (1/1) ... [2025-02-06 18:50:16,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:50:16,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:50:16,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:50:16,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:50:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:50:16,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:50:16,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:50:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:50:16,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:50:16,875 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:50:16,947 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:50:16,949 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:50:17,169 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:50:17,170 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:50:17,351 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:50:17,351 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:50:17,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:50:17 BoogieIcfgContainer [2025-02-06 18:50:17,352 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:50:17,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:50:17,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:50:17,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:50:17,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:50:16" (1/3) ... [2025-02-06 18:50:17,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5203d090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:50:17, skipping insertion in model container [2025-02-06 18:50:17,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:50:16" (2/3) ... [2025-02-06 18:50:17,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5203d090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:50:17, skipping insertion in model container [2025-02-06 18:50:17,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:50:17" (3/3) ... [2025-02-06 18:50:17,360 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2025-02-06 18:50:17,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:50:17,373 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-2-unrolled-atomic.wvr.c that has 3 procedures, 45 locations, 1 initial locations, 2 loop locations, and 20 error locations. [2025-02-06 18:50:17,373 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:50:17,449 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:50:17,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 110 flow [2025-02-06 18:50:17,520 INFO L124 PetriNetUnfolderBase]: 4/46 cut-off events. [2025-02-06 18:50:17,524 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:50:17,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 4/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 148 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-02-06 18:50:17,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 110 flow [2025-02-06 18:50:17,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 97 flow [2025-02-06 18:50:17,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:50:17,548 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;@282107f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:50:17,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2025-02-06 18:50:17,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:50:17,556 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-02-06 18:50:17,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:50:17,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:17,557 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:50:17,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:17,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:17,562 INFO L85 PathProgramCache]: Analyzing trace with hash 330887668, now seen corresponding path program 1 times [2025-02-06 18:50:17,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:17,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447543730] [2025-02-06 18:50:17,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:17,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:17,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:50:17,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:50:17,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:17,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:17,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447543730] [2025-02-06 18:50:17,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447543730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:17,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:17,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:17,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039530686] [2025-02-06 18:50:17,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:17,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:17,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:17,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:17,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:17,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-06 18:50:17,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-06 18:50:17,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:17,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-06 18:50:17,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,077 INFO L124 PetriNetUnfolderBase]: 558/899 cut-off events. [2025-02-06 18:50:18,077 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-02-06 18:50:18,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 899 events. 558/899 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 5030 event pairs, 268 based on Foata normal form. 124/514 useless extension candidates. Maximal degree in co-relation 1637. Up to 778 conditions per place. [2025-02-06 18:50:18,087 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 23 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2025-02-06 18:50:18,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 129 flow [2025-02-06 18:50:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2025-02-06 18:50:18,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2025-02-06 18:50:18,101 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 97 flow. Second operand 3 states and 74 transitions. [2025-02-06 18:50:18,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 129 flow [2025-02-06 18:50:18,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:50:18,111 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 78 flow [2025-02-06 18:50:18,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2025-02-06 18:50:18,118 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-06 18:50:18,118 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 78 flow [2025-02-06 18:50:18,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-06 18:50:18,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,119 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:50:18,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1667583421, now seen corresponding path program 1 times [2025-02-06 18:50:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778146643] [2025-02-06 18:50:18,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:50:18,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:50:18,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778146643] [2025-02-06 18:50:18,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778146643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907670342] [2025-02-06 18:50:18,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2025-02-06 18:50:18,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2025-02-06 18:50:18,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2025-02-06 18:50:18,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,265 INFO L124 PetriNetUnfolderBase]: 312/643 cut-off events. [2025-02-06 18:50:18,266 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:50:18,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 643 events. 312/643 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 4423 event pairs, 269 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 1195. Up to 533 conditions per place. [2025-02-06 18:50:18,269 INFO L140 encePairwiseOnDemand]: 45/48 looper letters, 23 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2025-02-06 18:50:18,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 122 flow [2025-02-06 18:50:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-02-06 18:50:18,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-06 18:50:18,271 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 78 flow. Second operand 3 states and 62 transitions. [2025-02-06 18:50:18,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 122 flow [2025-02-06 18:50:18,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:50:18,272 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 75 flow [2025-02-06 18:50:18,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2025-02-06 18:50:18,273 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2025-02-06 18:50:18,273 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 75 flow [2025-02-06 18:50:18,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2025-02-06 18:50:18,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,273 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:50:18,273 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,274 INFO L85 PathProgramCache]: Analyzing trace with hash 524875999, now seen corresponding path program 1 times [2025-02-06 18:50:18,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636629841] [2025-02-06 18:50:18,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:50:18,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:50:18,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636629841] [2025-02-06 18:50:18,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636629841] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076973947] [2025-02-06 18:50:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:18,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:18,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,496 INFO L124 PetriNetUnfolderBase]: 368/625 cut-off events. [2025-02-06 18:50:18,496 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:50:18,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 625 events. 368/625 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 3210 event pairs, 96 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 1178. Up to 314 conditions per place. [2025-02-06 18:50:18,501 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 31 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2025-02-06 18:50:18,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 194 flow [2025-02-06 18:50:18,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-06 18:50:18,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 18:50:18,503 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 75 flow. Second operand 3 states and 96 transitions. [2025-02-06 18:50:18,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 194 flow [2025-02-06 18:50:18,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:50:18,505 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 146 flow [2025-02-06 18:50:18,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2025-02-06 18:50:18,507 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2025-02-06 18:50:18,507 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 146 flow [2025-02-06 18:50:18,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,507 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:50:18,508 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 524876001, now seen corresponding path program 1 times [2025-02-06 18:50:18,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091986411] [2025-02-06 18:50:18,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:50:18,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:50:18,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091986411] [2025-02-06 18:50:18,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091986411] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149833798] [2025-02-06 18:50:18,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:18,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:18,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,729 INFO L124 PetriNetUnfolderBase]: 411/801 cut-off events. [2025-02-06 18:50:18,729 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2025-02-06 18:50:18,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 801 events. 411/801 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 5083 event pairs, 78 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 1891. Up to 410 conditions per place. [2025-02-06 18:50:18,734 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 49 selfloop transitions, 6 changer transitions 0/67 dead transitions. [2025-02-06 18:50:18,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 355 flow [2025-02-06 18:50:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-06 18:50:18,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 18:50:18,735 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 146 flow. Second operand 3 states and 96 transitions. [2025-02-06 18:50:18,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 355 flow [2025-02-06 18:50:18,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:50:18,739 INFO L231 Difference]: Finished difference. Result has 44 places, 47 transitions, 186 flow [2025-02-06 18:50:18,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2025-02-06 18:50:18,739 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-06 18:50:18,739 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 186 flow [2025-02-06 18:50:18,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,740 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:50:18,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,740 INFO L85 PathProgramCache]: Analyzing trace with hash 524876002, now seen corresponding path program 1 times [2025-02-06 18:50:18,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129244972] [2025-02-06 18:50:18,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:50:18,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:50:18,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129244972] [2025-02-06 18:50:18,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129244972] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840809285] [2025-02-06 18:50:18,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:18,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:18,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,824 INFO L124 PetriNetUnfolderBase]: 196/400 cut-off events. [2025-02-06 18:50:18,825 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2025-02-06 18:50:18,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 400 events. 196/400 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2205 event pairs, 108 based on Foata normal form. 22/283 useless extension candidates. Maximal degree in co-relation 932. Up to 312 conditions per place. [2025-02-06 18:50:18,827 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 24 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2025-02-06 18:50:18,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 184 flow [2025-02-06 18:50:18,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2025-02-06 18:50:18,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2025-02-06 18:50:18,828 INFO L175 Difference]: Start difference. First operand has 44 places, 47 transitions, 186 flow. Second operand 3 states and 76 transitions. [2025-02-06 18:50:18,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 184 flow [2025-02-06 18:50:18,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:50:18,829 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 128 flow [2025-02-06 18:50:18,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2025-02-06 18:50:18,830 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-06 18:50:18,830 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 128 flow [2025-02-06 18:50:18,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,830 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:50:18,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash 524876000, now seen corresponding path program 1 times [2025-02-06 18:50:18,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999037021] [2025-02-06 18:50:18,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:50:18,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:50:18,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999037021] [2025-02-06 18:50:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999037021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607636428] [2025-02-06 18:50:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:18,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:18,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:18,908 INFO L124 PetriNetUnfolderBase]: 159/337 cut-off events. [2025-02-06 18:50:18,908 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2025-02-06 18:50:18,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 337 events. 159/337 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1849 event pairs, 95 based on Foata normal form. 10/228 useless extension candidates. Maximal degree in co-relation 728. Up to 260 conditions per place. [2025-02-06 18:50:18,910 INFO L140 encePairwiseOnDemand]: 46/48 looper letters, 20 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2025-02-06 18:50:18,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 146 flow [2025-02-06 18:50:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-06 18:50:18,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-06 18:50:18,913 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 128 flow. Second operand 3 states and 72 transitions. [2025-02-06 18:50:18,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 146 flow [2025-02-06 18:50:18,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:50:18,914 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 105 flow [2025-02-06 18:50:18,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2025-02-06 18:50:18,914 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-06 18:50:18,915 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 105 flow [2025-02-06 18:50:18,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-06 18:50:18,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:18,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:18,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:50:18,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:18,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1483266385, now seen corresponding path program 1 times [2025-02-06 18:50:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950888092] [2025-02-06 18:50:18,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:18,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:18,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:50:18,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:50:18,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:18,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:18,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:18,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950888092] [2025-02-06 18:50:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950888092] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:18,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:18,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986065896] [2025-02-06 18:50:18,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:18,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:18,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:18,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:18,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:18,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:18,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2025-02-06 18:50:18,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:18,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:18,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:19,028 INFO L124 PetriNetUnfolderBase]: 129/289 cut-off events. [2025-02-06 18:50:19,029 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2025-02-06 18:50:19,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 289 events. 129/289 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1446 event pairs, 77 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 596. Up to 212 conditions per place. [2025-02-06 18:50:19,030 INFO L140 encePairwiseOnDemand]: 46/48 looper letters, 18 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2025-02-06 18:50:19,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 135 flow [2025-02-06 18:50:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 18:50:19,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2025-02-06 18:50:19,031 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 105 flow. Second operand 3 states and 71 transitions. [2025-02-06 18:50:19,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 135 flow [2025-02-06 18:50:19,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:50:19,032 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 98 flow [2025-02-06 18:50:19,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2025-02-06 18:50:19,032 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-06 18:50:19,032 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 98 flow [2025-02-06 18:50:19,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2025-02-06 18:50:19,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:19,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:19,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:50:19,033 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:19,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:19,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1483266386, now seen corresponding path program 1 times [2025-02-06 18:50:19,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:19,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003499874] [2025-02-06 18:50:19,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:19,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:19,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:50:19,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:50:19,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:19,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:19,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:19,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003499874] [2025-02-06 18:50:19,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003499874] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:50:19,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:50:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:50:19,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277961658] [2025-02-06 18:50:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:50:19,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:50:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:19,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:50:19,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:50:19,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-06 18:50:19,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2025-02-06 18:50:19,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:19,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-06 18:50:19,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:19,156 INFO L124 PetriNetUnfolderBase]: 137/359 cut-off events. [2025-02-06 18:50:19,156 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2025-02-06 18:50:19,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 359 events. 137/359 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2127 event pairs, 34 based on Foata normal form. 5/280 useless extension candidates. Maximal degree in co-relation 704. Up to 160 conditions per place. [2025-02-06 18:50:19,159 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2025-02-06 18:50:19,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 41 transitions, 189 flow [2025-02-06 18:50:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:50:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:50:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-02-06 18:50:19,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2025-02-06 18:50:19,163 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 98 flow. Second operand 3 states and 81 transitions. [2025-02-06 18:50:19,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 41 transitions, 189 flow [2025-02-06 18:50:19,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 41 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:50:19,164 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 113 flow [2025-02-06 18:50:19,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2025-02-06 18:50:19,164 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2025-02-06 18:50:19,166 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 113 flow [2025-02-06 18:50:19,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2025-02-06 18:50:19,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:19,166 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:50:19,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:50:19,166 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:19,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash -86838768, now seen corresponding path program 1 times [2025-02-06 18:50:19,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:19,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250403048] [2025-02-06 18:50:19,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:19,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:50:19,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:50:19,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:19,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:19,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250403048] [2025-02-06 18:50:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250403048] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:50:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228403105] [2025-02-06 18:50:19,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:19,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:50:19,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:50:19,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:50:19,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:50:19,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:50:19,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:50:19,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:19,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:19,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:50:19,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:50:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:50:19,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:50:19,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:50:19,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228403105] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:50:19,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:50:19,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-06 18:50:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125408356] [2025-02-06 18:50:19,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:50:19,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:50:19,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:19,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:50:19,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:50:19,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2025-02-06 18:50:19,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 113 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2025-02-06 18:50:19,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:19,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2025-02-06 18:50:19,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:19,617 INFO L124 PetriNetUnfolderBase]: 530/1040 cut-off events. [2025-02-06 18:50:19,618 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-02-06 18:50:19,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1040 events. 530/1040 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6083 event pairs, 111 based on Foata normal form. 36/921 useless extension candidates. Maximal degree in co-relation 2300. Up to 257 conditions per place. [2025-02-06 18:50:19,624 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 55 selfloop transitions, 5 changer transitions 4/72 dead transitions. [2025-02-06 18:50:19,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 72 transitions, 353 flow [2025-02-06 18:50:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:50:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:50:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2025-02-06 18:50:19,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-06 18:50:19,626 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 113 flow. Second operand 6 states and 124 transitions. [2025-02-06 18:50:19,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 72 transitions, 353 flow [2025-02-06 18:50:19,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 72 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:50:19,630 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 101 flow [2025-02-06 18:50:19,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2025-02-06 18:50:19,631 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2025-02-06 18:50:19,632 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 101 flow [2025-02-06 18:50:19,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2025-02-06 18:50:19,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:50:19,632 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:19,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:50:19,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:50:19,833 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-06 18:50:19,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:50:19,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1668850802, now seen corresponding path program 1 times [2025-02-06 18:50:19,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:50:19,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967654695] [2025-02-06 18:50:19,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:19,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:50:19,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:50:19,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:50:19,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:19,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:50:19,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:50:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967654695] [2025-02-06 18:50:19,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967654695] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:50:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798626422] [2025-02-06 18:50:19,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:50:19,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:50:19,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:50:19,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:50:19,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:50:19,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:50:19,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:50:19,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:50:19,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:50:19,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:50:19,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:50:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:50:20,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:50:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:50:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798626422] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:50:20,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:50:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2025-02-06 18:50:20,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182942986] [2025-02-06 18:50:20,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:50:20,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:50:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:50:20,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:50:20,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:50:20,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2025-02-06 18:50:20,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 101 flow. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2025-02-06 18:50:20,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:50:20,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2025-02-06 18:50:20,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:50:20,246 INFO L124 PetriNetUnfolderBase]: 594/1259 cut-off events. [2025-02-06 18:50:20,246 INFO L125 PetriNetUnfolderBase]: For 464/494 co-relation queries the response was YES. [2025-02-06 18:50:20,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 1259 events. 594/1259 cut-off events. For 464/494 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7650 event pairs, 147 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 2601. Up to 292 conditions per place. [2025-02-06 18:50:20,251 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2025-02-06 18:50:20,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 288 flow [2025-02-06 18:50:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:50:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:50:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2025-02-06 18:50:20,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3576388888888889 [2025-02-06 18:50:20,252 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 101 flow. Second operand 6 states and 103 transitions. [2025-02-06 18:50:20,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 288 flow [2025-02-06 18:50:20,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 260 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-02-06 18:50:20,253 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-02-06 18:50:20,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-02-06 18:50:20,253 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-06 18:50:20,253 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-02-06 18:50:20,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2025-02-06 18:50:20,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2025-02-06 18:50:20,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2025-02-06 18:50:20,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2025-02-06 18:50:20,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2025-02-06 18:50:20,259 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2025-02-06 18:50:20,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2025-02-06 18:50:20,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2025-02-06 18:50:20,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2025-02-06 18:50:20,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2025-02-06 18:50:20,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2025-02-06 18:50:20,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2025-02-06 18:50:20,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:50:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:50:20,463 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:50:20,467 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:50:20,467 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:50:20,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:50:20 BasicIcfg [2025-02-06 18:50:20,473 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:50:20,474 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:50:20,474 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:50:20,475 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:50:20,475 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:50:17" (3/4) ... [2025-02-06 18:50:20,477 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:50:20,478 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:50:20,478 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:50:20,482 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2025-02-06 18:50:20,482 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-02-06 18:50:20,482 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-06 18:50:20,482 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 18:50:20,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:50:20,546 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:50:20,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:50:20,546 INFO L158 Benchmark]: Toolchain (without parser) took 3972.15ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 123.6MB in the beginning and 251.6MB in the end (delta: -128.0MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2025-02-06 18:50:20,547 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:50:20,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.70ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 111.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:50:20,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.16ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 110.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:50:20,549 INFO L158 Benchmark]: Boogie Preprocessor took 30.90ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:50:20,549 INFO L158 Benchmark]: IcfgBuilder took 538.87ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 70.0MB in the end (delta: 39.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 18:50:20,550 INFO L158 Benchmark]: TraceAbstraction took 3119.81ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 70.0MB in the beginning and 257.9MB in the end (delta: -187.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2025-02-06 18:50:20,551 INFO L158 Benchmark]: Witness Printer took 71.50ms. Allocated memory is still 360.7MB. Free memory was 257.9MB in the beginning and 251.6MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:50:20,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.70ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 111.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.16ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 110.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.90ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.7MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 538.87ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 70.0MB in the end (delta: 39.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3119.81ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 70.0MB in the beginning and 257.9MB in the end (delta: -187.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 71.50ms. Allocated memory is still 360.7MB. Free memory was 257.9MB in the beginning and 251.6MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 434 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 360 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 12 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 4 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 16/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:50:20,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE