./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-commit-1.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/popl20-commit-1.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 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:51:45,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:51:45,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:51:45,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:51:45,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:51:45,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:51:45,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:51:45,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:51:45,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:51:45,405 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:51:45,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:51:45,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:51:45,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:51:45,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:51:45,407 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:51:45,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:51:45,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:51:45,407 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:51:45,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:51:45,409 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:51:45,409 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:51:45,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:51:45,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:51:45,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:51:45,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:51:45,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:51:45,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:51:45,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:51:45,412 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 -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2025-02-06 18:51:45,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:51:45,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:51:45,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:51:45,713 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:51:45,714 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:51:45,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2025-02-06 18:51:47,020 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abdbc9596/70873f419a7748379b94a1f038f9f581/FLAG351e4fd28 [2025-02-06 18:51:47,313 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:51:47,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2025-02-06 18:51:47,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abdbc9596/70873f419a7748379b94a1f038f9f581/FLAG351e4fd28 [2025-02-06 18:51:47,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abdbc9596/70873f419a7748379b94a1f038f9f581 [2025-02-06 18:51:47,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:51:47,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:51:47,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:51:47,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:51:47,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:51:47,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476cee48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47, skipping insertion in model container [2025-02-06 18:51:47,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:51:47,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:51:47,590 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:51:47,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:51:47,651 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:51:47,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47 WrapperNode [2025-02-06 18:51:47,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:51:47,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:51:47,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:51:47,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:51:47,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,701 INFO L138 Inliner]: procedures = 24, calls = 54, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 349 [2025-02-06 18:51:47,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:51:47,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:51:47,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:51:47,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:51:47,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,739 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-06 18:51:47,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,748 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:51:47,755 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:51:47,755 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:51:47,756 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:51:47,756 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (1/1) ... [2025-02-06 18:51:47,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:51:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:47,782 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 18:51:47,785 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 18:51:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:51:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:51:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:51:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:51:47,809 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 18:51:47,927 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:51:47,928 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:51:48,436 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:51:48,436 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:51:48,846 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:51:48,847 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:51:48,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:48 BoogieIcfgContainer [2025-02-06 18:51:48,847 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:51:48,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:51:48,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:51:48,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:51:48,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:51:47" (1/3) ... [2025-02-06 18:51:48,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c770e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:51:48, skipping insertion in model container [2025-02-06 18:51:48,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:47" (2/3) ... [2025-02-06 18:51:48,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c770e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:51:48, skipping insertion in model container [2025-02-06 18:51:48,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:48" (3/3) ... [2025-02-06 18:51:48,857 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2025-02-06 18:51:48,870 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:51:48,872 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-commit-1.wvr.c that has 4 procedures, 66 locations, 1 initial locations, 6 loop locations, and 22 error locations. [2025-02-06 18:51:48,872 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:51:48,976 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:51:49,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 169 flow [2025-02-06 18:51:49,078 INFO L124 PetriNetUnfolderBase]: 9/71 cut-off events. [2025-02-06 18:51:49,081 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:51:49,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 71 events. 9/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 208 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2025-02-06 18:51:49,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 169 flow [2025-02-06 18:51:49,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 153 flow [2025-02-06 18:51:49,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:51:49,115 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;@597c7735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:51:49,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2025-02-06 18:51:49,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:51:49,122 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:51:49,122 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:51:49,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:49,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:51:49,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:49,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash 944915, now seen corresponding path program 1 times [2025-02-06 18:51:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:49,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148708991] [2025-02-06 18:51:49,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:49,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:51:49,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:51:49,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:49,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:49,371 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 18:51:49,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:49,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148708991] [2025-02-06 18:51:49,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148708991] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:49,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:49,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:51:49,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381427620] [2025-02-06 18:51:49,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:49,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:51:49,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:49,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:51:49,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:51:49,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2025-02-06 18:51:49,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 18:51:49,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:49,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2025-02-06 18:51:49,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:50,751 INFO L124 PetriNetUnfolderBase]: 5899/8380 cut-off events. [2025-02-06 18:51:50,752 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2025-02-06 18:51:50,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17100 conditions, 8380 events. 5899/8380 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 43277 event pairs, 5198 based on Foata normal form. 3/5911 useless extension candidates. Maximal degree in co-relation 16423. Up to 8356 conditions per place. [2025-02-06 18:51:50,811 INFO L140 encePairwiseOnDemand]: 47/74 looper letters, 51 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2025-02-06 18:51:50,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 271 flow [2025-02-06 18:51:50,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:51:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:51:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2025-02-06 18:51:50,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38513513513513514 [2025-02-06 18:51:50,825 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 153 flow. Second operand 4 states and 114 transitions. [2025-02-06 18:51:50,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 271 flow [2025-02-06 18:51:50,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 262 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:51:50,840 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 210 flow [2025-02-06 18:51:50,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2025-02-06 18:51:50,847 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2025-02-06 18:51:50,849 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 210 flow [2025-02-06 18:51:50,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 18:51:50,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:50,849 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:51:50,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:51:50,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:50,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1913959492, now seen corresponding path program 1 times [2025-02-06 18:51:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560826882] [2025-02-06 18:51:50,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:50,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:51:50,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:51:50,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:50,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:51,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:51,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560826882] [2025-02-06 18:51:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560826882] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:51:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400029858] [2025-02-06 18:51:51,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:51,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:51,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:51,019 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 18:51:51,021 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 18:51:51,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:51:51,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:51:51,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:51,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:51,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:51:51,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:51:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:51,170 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:51:51,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400029858] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:51,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:51:51,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:51:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613290745] [2025-02-06 18:51:51,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:51,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:51:51,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:51,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:51:51,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:51:51,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2025-02-06 18:51:51,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 18:51:51,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:51,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2025-02-06 18:51:51,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:52,132 INFO L124 PetriNetUnfolderBase]: 5899/8377 cut-off events. [2025-02-06 18:51:52,133 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2025-02-06 18:51:52,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17022 conditions, 8377 events. 5899/8377 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 43284 event pairs, 5198 based on Foata normal form. 3/5913 useless extension candidates. Maximal degree in co-relation 16949. Up to 8341 conditions per place. [2025-02-06 18:51:52,187 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 41 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2025-02-06 18:51:52,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 314 flow [2025-02-06 18:51:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:51:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:51:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2025-02-06 18:51:52,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25900900900900903 [2025-02-06 18:51:52,191 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 210 flow. Second operand 6 states and 115 transitions. [2025-02-06 18:51:52,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 314 flow [2025-02-06 18:51:52,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:51:52,193 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 232 flow [2025-02-06 18:51:52,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2025-02-06 18:51:52,194 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2025-02-06 18:51:52,194 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 232 flow [2025-02-06 18:51:52,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 18:51:52,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:52,195 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:51:52,204 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 18:51:52,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:52,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:52,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:52,400 INFO L85 PathProgramCache]: Analyzing trace with hash 796798744, now seen corresponding path program 1 times [2025-02-06 18:51:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:52,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427249928] [2025-02-06 18:51:52,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:52,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:52,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:51:52,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:51:52,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:52,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:52,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:52,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:52,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427249928] [2025-02-06 18:51:52,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427249928] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:51:52,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578679955] [2025-02-06 18:51:52,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:52,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:52,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:52,578 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 18:51:52,581 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 18:51:52,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:51:52,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:51:52,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:52,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:52,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:51:52,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:51:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:52,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:51:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:52,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578679955] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:51:52,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:51:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:51:52,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048145594] [2025-02-06 18:51:52,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:51:52,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:51:52,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:52,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:51:52,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:51:52,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2025-02-06 18:51:52,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 232 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 18:51:52,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:52,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2025-02-06 18:51:52,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:53,781 INFO L124 PetriNetUnfolderBase]: 5908/8413 cut-off events. [2025-02-06 18:51:53,782 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2025-02-06 18:51:53,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17163 conditions, 8413 events. 5908/8413 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 43668 event pairs, 5198 based on Foata normal form. 9/5955 useless extension candidates. Maximal degree in co-relation 16951. Up to 8356 conditions per place. [2025-02-06 18:51:53,816 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 48 selfloop transitions, 37 changer transitions 0/91 dead transitions. [2025-02-06 18:51:53,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 91 transitions, 576 flow [2025-02-06 18:51:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:51:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:51:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2025-02-06 18:51:53,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24864864864864866 [2025-02-06 18:51:53,819 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 232 flow. Second operand 10 states and 184 transitions. [2025-02-06 18:51:53,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 91 transitions, 576 flow [2025-02-06 18:51:53,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 493 flow, removed 16 selfloop flow, removed 5 redundant places. [2025-02-06 18:51:53,822 INFO L231 Difference]: Finished difference. Result has 72 places, 91 transitions, 447 flow [2025-02-06 18:51:53,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=447, PETRI_PLACES=72, PETRI_TRANSITIONS=91} [2025-02-06 18:51:53,823 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2025-02-06 18:51:53,823 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 91 transitions, 447 flow [2025-02-06 18:51:53,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 18:51:53,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:53,824 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:53,832 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 18:51:54,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:54,028 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:54,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1744339120, now seen corresponding path program 1 times [2025-02-06 18:51:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:54,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399166456] [2025-02-06 18:51:54,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:54,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:51:54,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:51:54,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:54,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:54,157 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 18:51:54,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:54,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399166456] [2025-02-06 18:51:54,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399166456] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:51:54,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582901109] [2025-02-06 18:51:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:54,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:51:54,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:54,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:51:54,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:51:54,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:54,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 91 transitions, 447 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:54,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:54,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:54,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:54,888 INFO L124 PetriNetUnfolderBase]: 7159/10220 cut-off events. [2025-02-06 18:51:54,889 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2025-02-06 18:51:54,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20842 conditions, 10220 events. 7159/10220 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 54506 event pairs, 2362 based on Foata normal form. 114/7373 useless extension candidates. Maximal degree in co-relation 20744. Up to 8328 conditions per place. [2025-02-06 18:51:55,005 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 102 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2025-02-06 18:51:55,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 114 transitions, 707 flow [2025-02-06 18:51:55,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:51:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:51:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2025-02-06 18:51:55,007 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2025-02-06 18:51:55,007 INFO L175 Difference]: Start difference. First operand has 72 places, 91 transitions, 447 flow. Second operand 3 states and 116 transitions. [2025-02-06 18:51:55,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 114 transitions, 707 flow [2025-02-06 18:51:55,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 114 transitions, 670 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-06 18:51:55,012 INFO L231 Difference]: Finished difference. Result has 73 places, 93 transitions, 431 flow [2025-02-06 18:51:55,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=73, PETRI_TRANSITIONS=93} [2025-02-06 18:51:55,013 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2025-02-06 18:51:55,013 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 93 transitions, 431 flow [2025-02-06 18:51:55,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:55,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:55,013 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:55,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:51:55,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:55,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:55,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2035940329, now seen corresponding path program 1 times [2025-02-06 18:51:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:55,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468908512] [2025-02-06 18:51:55,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:55,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:55,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:51:55,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:51:55,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:55,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:55,112 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 18:51:55,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:55,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468908512] [2025-02-06 18:51:55,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468908512] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:55,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:55,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:51:55,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812101886] [2025-02-06 18:51:55,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:55,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:51:55,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:55,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:51:55,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:51:55,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:55,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 93 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 18:51:55,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:55,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:55,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:56,100 INFO L124 PetriNetUnfolderBase]: 6818/9770 cut-off events. [2025-02-06 18:51:56,101 INFO L125 PetriNetUnfolderBase]: For 490/490 co-relation queries the response was YES. [2025-02-06 18:51:56,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20758 conditions, 9770 events. 6818/9770 cut-off events. For 490/490 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 48825 event pairs, 2901 based on Foata normal form. 212/7636 useless extension candidates. Maximal degree in co-relation 20663. Up to 6361 conditions per place. [2025-02-06 18:51:56,162 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 104 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2025-02-06 18:51:56,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 115 transitions, 692 flow [2025-02-06 18:51:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:51:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:51:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2025-02-06 18:51:56,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2025-02-06 18:51:56,164 INFO L175 Difference]: Start difference. First operand has 73 places, 93 transitions, 431 flow. Second operand 3 states and 116 transitions. [2025-02-06 18:51:56,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 115 transitions, 692 flow [2025-02-06 18:51:56,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:51:56,169 INFO L231 Difference]: Finished difference. Result has 75 places, 93 transitions, 438 flow [2025-02-06 18:51:56,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=75, PETRI_TRANSITIONS=93} [2025-02-06 18:51:56,170 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2025-02-06 18:51:56,170 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 93 transitions, 438 flow [2025-02-06 18:51:56,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 18:51:56,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:56,170 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:56,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:51:56,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:56,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash 731959520, now seen corresponding path program 1 times [2025-02-06 18:51:56,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:56,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076514981] [2025-02-06 18:51:56,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:56,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:56,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:51:56,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:51:56,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:56,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:56,330 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 18:51:56,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:56,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076514981] [2025-02-06 18:51:56,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076514981] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:56,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:56,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:51:56,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570953424] [2025-02-06 18:51:56,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:56,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:51:56,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:56,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:51:56,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:51:56,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:56,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 93 transitions, 438 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:56,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:56,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:56,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:57,029 INFO L124 PetriNetUnfolderBase]: 7435/10773 cut-off events. [2025-02-06 18:51:57,029 INFO L125 PetriNetUnfolderBase]: For 777/777 co-relation queries the response was YES. [2025-02-06 18:51:57,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23515 conditions, 10773 events. 7435/10773 cut-off events. For 777/777 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 55660 event pairs, 6755 based on Foata normal form. 112/8578 useless extension candidates. Maximal degree in co-relation 23362. Up to 9739 conditions per place. [2025-02-06 18:51:57,079 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 106 selfloop transitions, 3 changer transitions 25/143 dead transitions. [2025-02-06 18:51:57,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 143 transitions, 941 flow [2025-02-06 18:51:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:51:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:51:57,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2025-02-06 18:51:57,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46283783783783783 [2025-02-06 18:51:57,080 INFO L175 Difference]: Start difference. First operand has 75 places, 93 transitions, 438 flow. Second operand 4 states and 137 transitions. [2025-02-06 18:51:57,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 143 transitions, 941 flow [2025-02-06 18:51:57,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 143 transitions, 939 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:51:57,088 INFO L231 Difference]: Finished difference. Result has 78 places, 93 transitions, 447 flow [2025-02-06 18:51:57,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=447, PETRI_PLACES=78, PETRI_TRANSITIONS=93} [2025-02-06 18:51:57,088 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 8 predicate places. [2025-02-06 18:51:57,088 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 93 transitions, 447 flow [2025-02-06 18:51:57,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:57,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:57,089 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:51:57,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:51:57,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:57,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:57,089 INFO L85 PathProgramCache]: Analyzing trace with hash 486880225, now seen corresponding path program 2 times [2025-02-06 18:51:57,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:57,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041406986] [2025-02-06 18:51:57,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:51:57,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:57,104 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:51:57,109 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:51:57,110 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:51:57,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:51:57,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041406986] [2025-02-06 18:51:57,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041406986] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:51:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254471581] [2025-02-06 18:51:57,158 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:51:57,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:57,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:57,160 INFO L229 MonitoredProcess]: Starting monitored process 4 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 18:51:57,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:51:57,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:51:57,242 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:51:57,243 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:51:57,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:57,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:51:57,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:51:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:51:57,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:51:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:51:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254471581] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:51:57,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:51:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:51:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984974326] [2025-02-06 18:51:57,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:51:57,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:51:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:57,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:51:57,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:51:57,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2025-02-06 18:51:57,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 93 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:51:57,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:57,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2025-02-06 18:51:57,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:58,039 INFO L124 PetriNetUnfolderBase]: 7435/10766 cut-off events. [2025-02-06 18:51:58,039 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2025-02-06 18:51:58,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23836 conditions, 10766 events. 7435/10766 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 55990 event pairs, 6755 based on Foata normal form. 5/8445 useless extension candidates. Maximal degree in co-relation 23707. Up to 10654 conditions per place. [2025-02-06 18:51:58,071 INFO L140 encePairwiseOnDemand]: 63/74 looper letters, 47 selfloop transitions, 36 changer transitions 1/90 dead transitions. [2025-02-06 18:51:58,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 90 transitions, 585 flow [2025-02-06 18:51:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:51:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:51:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2025-02-06 18:51:58,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28716216216216217 [2025-02-06 18:51:58,072 INFO L175 Difference]: Start difference. First operand has 78 places, 93 transitions, 447 flow. Second operand 4 states and 85 transitions. [2025-02-06 18:51:58,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 90 transitions, 585 flow [2025-02-06 18:51:58,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 551 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 18:51:58,077 INFO L231 Difference]: Finished difference. Result has 73 places, 89 transitions, 450 flow [2025-02-06 18:51:58,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=450, PETRI_PLACES=73, PETRI_TRANSITIONS=89} [2025-02-06 18:51:58,078 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2025-02-06 18:51:58,078 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 89 transitions, 450 flow [2025-02-06 18:51:58,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:51:58,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:58,078 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:58,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:51:58,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:58,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:58,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2111812169, now seen corresponding path program 1 times [2025-02-06 18:51:58,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068261606] [2025-02-06 18:51:58,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:58,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:58,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:51:58,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:51:58,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:58,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:51:58,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068261606] [2025-02-06 18:51:58,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068261606] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:51:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253013173] [2025-02-06 18:51:58,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:58,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:51:58,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:58,476 INFO L229 MonitoredProcess]: Starting monitored process 5 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 18:51:58,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:51:58,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:51:58,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:51:58,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:58,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:58,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:51:58,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:51:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:51:58,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:51:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253013173] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:51:58,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2025-02-06 18:51:58,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132867255] [2025-02-06 18:51:58,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:58,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:51:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:58,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:51:58,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:51:58,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:58,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 89 transitions, 450 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 18:51:58,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:58,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:58,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:59,061 INFO L124 PetriNetUnfolderBase]: 4794/6906 cut-off events. [2025-02-06 18:51:59,061 INFO L125 PetriNetUnfolderBase]: For 827/827 co-relation queries the response was YES. [2025-02-06 18:51:59,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15131 conditions, 6906 events. 4794/6906 cut-off events. For 827/827 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 33762 event pairs, 4276 based on Foata normal form. 448/5965 useless extension candidates. Maximal degree in co-relation 14899. Up to 6880 conditions per place. [2025-02-06 18:51:59,081 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 78 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2025-02-06 18:51:59,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 85 transitions, 596 flow [2025-02-06 18:51:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:51:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:51:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-02-06 18:51:59,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4099099099099099 [2025-02-06 18:51:59,082 INFO L175 Difference]: Start difference. First operand has 73 places, 89 transitions, 450 flow. Second operand 3 states and 91 transitions. [2025-02-06 18:51:59,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 85 transitions, 596 flow [2025-02-06 18:51:59,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 522 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:51:59,086 INFO L231 Difference]: Finished difference. Result has 66 places, 85 transitions, 366 flow [2025-02-06 18:51:59,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=66, PETRI_TRANSITIONS=85} [2025-02-06 18:51:59,087 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2025-02-06 18:51:59,087 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 85 transitions, 366 flow [2025-02-06 18:51:59,088 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 18:51:59,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:59,088 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:59,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:51:59,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 18:51:59,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:59,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1041668812, now seen corresponding path program 1 times [2025-02-06 18:51:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842979] [2025-02-06 18:51:59,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:59,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:59,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:51:59,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:51:59,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:59,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:51:59,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:59,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842979] [2025-02-06 18:51:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842979] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:59,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:59,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:51:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511784394] [2025-02-06 18:51:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:59,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:51:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:59,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:51:59,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:51:59,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:59,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 85 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:59,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:59,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:59,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:51:59,689 INFO L124 PetriNetUnfolderBase]: 3764/5468 cut-off events. [2025-02-06 18:51:59,689 INFO L125 PetriNetUnfolderBase]: For 563/563 co-relation queries the response was YES. [2025-02-06 18:51:59,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11985 conditions, 5468 events. 3764/5468 cut-off events. For 563/563 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 25108 event pairs, 1727 based on Foata normal form. 124/4469 useless extension candidates. Maximal degree in co-relation 11971. Up to 4119 conditions per place. [2025-02-06 18:51:59,704 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 94 selfloop transitions, 2 changer transitions 6/108 dead transitions. [2025-02-06 18:51:59,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 626 flow [2025-02-06 18:51:59,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:51:59,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:51:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2025-02-06 18:51:59,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5135135135135135 [2025-02-06 18:51:59,705 INFO L175 Difference]: Start difference. First operand has 66 places, 85 transitions, 366 flow. Second operand 3 states and 114 transitions. [2025-02-06 18:51:59,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 626 flow [2025-02-06 18:51:59,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:51:59,707 INFO L231 Difference]: Finished difference. Result has 68 places, 86 transitions, 379 flow [2025-02-06 18:51:59,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=68, PETRI_TRANSITIONS=86} [2025-02-06 18:51:59,708 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2025-02-06 18:51:59,708 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 86 transitions, 379 flow [2025-02-06 18:51:59,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:51:59,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:51:59,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:51:59,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:51:59,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:51:59,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:51:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2144258774, now seen corresponding path program 1 times [2025-02-06 18:51:59,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:51:59,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159556021] [2025-02-06 18:51:59,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:51:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:51:59,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 18:51:59,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 18:51:59,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:51:59,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:51:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:51:59,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:51:59,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159556021] [2025-02-06 18:51:59,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159556021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:51:59,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:51:59,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:51:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85217561] [2025-02-06 18:51:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:51:59,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:51:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:51:59,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:51:59,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:51:59,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:51:59,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 86 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 18:51:59,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:51:59,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:51:59,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:00,362 INFO L124 PetriNetUnfolderBase]: 4499/6623 cut-off events. [2025-02-06 18:52:00,363 INFO L125 PetriNetUnfolderBase]: For 745/745 co-relation queries the response was YES. [2025-02-06 18:52:00,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14888 conditions, 6623 events. 4499/6623 cut-off events. For 745/745 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 32319 event pairs, 4052 based on Foata normal form. 20/5442 useless extension candidates. Maximal degree in co-relation 14872. Up to 5411 conditions per place. [2025-02-06 18:52:00,378 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 72 selfloop transitions, 7 changer transitions 23/108 dead transitions. [2025-02-06 18:52:00,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 108 transitions, 637 flow [2025-02-06 18:52:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:52:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:52:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2025-02-06 18:52:00,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4358108108108108 [2025-02-06 18:52:00,380 INFO L175 Difference]: Start difference. First operand has 68 places, 86 transitions, 379 flow. Second operand 4 states and 129 transitions. [2025-02-06 18:52:00,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 108 transitions, 637 flow [2025-02-06 18:52:00,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 108 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:52:00,383 INFO L231 Difference]: Finished difference. Result has 71 places, 85 transitions, 396 flow [2025-02-06 18:52:00,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=71, PETRI_TRANSITIONS=85} [2025-02-06 18:52:00,384 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2025-02-06 18:52:00,384 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 85 transitions, 396 flow [2025-02-06 18:52:00,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 18:52:00,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:00,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:00,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:52:00,385 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:52:00,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash -536807753, now seen corresponding path program 1 times [2025-02-06 18:52:00,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:00,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455727429] [2025-02-06 18:52:00,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:00,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:00,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 18:52:00,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 18:52:00,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:00,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:00,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455727429] [2025-02-06 18:52:00,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455727429] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992369199] [2025-02-06 18:52:00,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:00,603 INFO L229 MonitoredProcess]: Starting monitored process 6 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 18:52:00,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:52:00,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 18:52:00,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 18:52:00,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:00,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:00,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:52:00,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:00,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:52:00,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992369199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:00,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:52:00,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-06 18:52:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533687710] [2025-02-06 18:52:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:00,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:52:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:00,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:52:00,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:52:00,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:52:00,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 85 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 18:52:00,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:00,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:52:00,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:01,155 INFO L124 PetriNetUnfolderBase]: 3132/4575 cut-off events. [2025-02-06 18:52:01,155 INFO L125 PetriNetUnfolderBase]: For 723/723 co-relation queries the response was YES. [2025-02-06 18:52:01,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10359 conditions, 4575 events. 3132/4575 cut-off events. For 723/723 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 20702 event pairs, 2748 based on Foata normal form. 108/3945 useless extension candidates. Maximal degree in co-relation 10341. Up to 4549 conditions per place. [2025-02-06 18:52:01,171 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 76 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2025-02-06 18:52:01,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 83 transitions, 542 flow [2025-02-06 18:52:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:52:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:52:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2025-02-06 18:52:01,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3918918918918919 [2025-02-06 18:52:01,173 INFO L175 Difference]: Start difference. First operand has 71 places, 85 transitions, 396 flow. Second operand 3 states and 87 transitions. [2025-02-06 18:52:01,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 83 transitions, 542 flow [2025-02-06 18:52:01,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 83 transitions, 526 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-02-06 18:52:01,175 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 374 flow [2025-02-06 18:52:01,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2025-02-06 18:52:01,176 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2025-02-06 18:52:01,176 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 374 flow [2025-02-06 18:52:01,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 18:52:01,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:01,176 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:01,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:52:01,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 18:52:01,377 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:52:01,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash 292351806, now seen corresponding path program 1 times [2025-02-06 18:52:01,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:01,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912530909] [2025-02-06 18:52:01,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:01,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:52:01,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:52:01,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:01,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912530909] [2025-02-06 18:52:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912530909] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:01,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:01,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:52:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298574078] [2025-02-06 18:52:01,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:01,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:01,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:01,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:01,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:01,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:52:01,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 18:52:01,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:01,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:52:01,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:02,126 INFO L124 PetriNetUnfolderBase]: 3909/5815 cut-off events. [2025-02-06 18:52:02,127 INFO L125 PetriNetUnfolderBase]: For 677/677 co-relation queries the response was YES. [2025-02-06 18:52:02,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12967 conditions, 5815 events. 3909/5815 cut-off events. For 677/677 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 27985 event pairs, 3518 based on Foata normal form. 28/4887 useless extension candidates. Maximal degree in co-relation 12950. Up to 4533 conditions per place. [2025-02-06 18:52:02,152 INFO L140 encePairwiseOnDemand]: 66/74 looper letters, 69 selfloop transitions, 7 changer transitions 41/123 dead transitions. [2025-02-06 18:52:02,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 123 transitions, 755 flow [2025-02-06 18:52:02,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2025-02-06 18:52:02,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2025-02-06 18:52:02,154 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 374 flow. Second operand 5 states and 153 transitions. [2025-02-06 18:52:02,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 123 transitions, 755 flow [2025-02-06 18:52:02,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:52:02,159 INFO L231 Difference]: Finished difference. Result has 73 places, 82 transitions, 395 flow [2025-02-06 18:52:02,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=73, PETRI_TRANSITIONS=82} [2025-02-06 18:52:02,160 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2025-02-06 18:52:02,160 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 82 transitions, 395 flow [2025-02-06 18:52:02,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 18:52:02,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:02,162 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:02,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:52:02,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:52:02,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash 213833562, now seen corresponding path program 1 times [2025-02-06 18:52:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372854327] [2025-02-06 18:52:02,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:02,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 18:52:02,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 18:52:02,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:02,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:02,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:02,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372854327] [2025-02-06 18:52:02,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372854327] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:02,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189257145] [2025-02-06 18:52:02,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:02,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:02,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:02,394 INFO L229 MonitoredProcess]: Starting monitored process 7 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 18:52:02,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:52:02,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 18:52:02,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 18:52:02,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:02,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 18:52:02,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:02,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189257145] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:02,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:02,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2025-02-06 18:52:02,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667300282] [2025-02-06 18:52:02,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:02,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 18:52:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:02,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 18:52:02,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-06 18:52:02,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2025-02-06 18:52:02,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 82 transitions, 395 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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 18:52:02,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:02,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2025-02-06 18:52:02,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:04,084 INFO L124 PetriNetUnfolderBase]: 5607/8542 cut-off events. [2025-02-06 18:52:04,085 INFO L125 PetriNetUnfolderBase]: For 1082/1082 co-relation queries the response was YES. [2025-02-06 18:52:04,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18972 conditions, 8542 events. 5607/8542 cut-off events. For 1082/1082 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 45878 event pairs, 3464 based on Foata normal form. 176/7307 useless extension candidates. Maximal degree in co-relation 18952. Up to 3558 conditions per place. [2025-02-06 18:52:04,102 INFO L140 encePairwiseOnDemand]: 58/74 looper letters, 49 selfloop transitions, 34 changer transitions 184/273 dead transitions. [2025-02-06 18:52:04,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 273 transitions, 1590 flow [2025-02-06 18:52:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 18:52:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 18:52:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 435 transitions. [2025-02-06 18:52:04,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23513513513513515 [2025-02-06 18:52:04,105 INFO L175 Difference]: Start difference. First operand has 73 places, 82 transitions, 395 flow. Second operand 25 states and 435 transitions. [2025-02-06 18:52:04,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 273 transitions, 1590 flow [2025-02-06 18:52:04,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 273 transitions, 1544 flow, removed 7 selfloop flow, removed 5 redundant places. [2025-02-06 18:52:04,112 INFO L231 Difference]: Finished difference. Result has 97 places, 80 transitions, 439 flow [2025-02-06 18:52:04,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=439, PETRI_PLACES=97, PETRI_TRANSITIONS=80} [2025-02-06 18:52:04,112 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 27 predicate places. [2025-02-06 18:52:04,112 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 80 transitions, 439 flow [2025-02-06 18:52:04,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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 18:52:04,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:04,113 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:04,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:52:04,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 18:52:04,316 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-02-06 18:52:04,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2139473871, now seen corresponding path program 2 times [2025-02-06 18:52:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273794913] [2025-02-06 18:52:04,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:04,331 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 18:52:04,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 35 statements. [2025-02-06 18:52:04,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:04,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:52:04,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:04,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273794913] [2025-02-06 18:52:04,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273794913] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:04,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:04,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:52:04,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148396904] [2025-02-06 18:52:04,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:04,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:52:04,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:04,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:52:04,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:52:04,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2025-02-06 18:52:04,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 80 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:52:04,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:04,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2025-02-06 18:52:04,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:04,686 INFO L124 PetriNetUnfolderBase]: 2568/3779 cut-off events. [2025-02-06 18:52:04,686 INFO L125 PetriNetUnfolderBase]: For 1663/1663 co-relation queries the response was YES. [2025-02-06 18:52:04,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9280 conditions, 3779 events. 2568/3779 cut-off events. For 1663/1663 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16575 event pairs, 2248 based on Foata normal form. 98/3342 useless extension candidates. Maximal degree in co-relation 9258. Up to 3753 conditions per place. [2025-02-06 18:52:04,696 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2025-02-06 18:52:04,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 78 transitions, 573 flow [2025-02-06 18:52:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:52:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:52:04,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2025-02-06 18:52:04,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38288288288288286 [2025-02-06 18:52:04,697 INFO L175 Difference]: Start difference. First operand has 97 places, 80 transitions, 439 flow. Second operand 3 states and 85 transitions. [2025-02-06 18:52:04,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 78 transitions, 573 flow [2025-02-06 18:52:04,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 549 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-06 18:52:04,702 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2025-02-06 18:52:04,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2025-02-06 18:52:04,704 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, 6 predicate places. [2025-02-06 18:52:04,704 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2025-02-06 18:52:04,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:52:04,706 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2025-02-06 18:52:04,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2025-02-06 18:52:04,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2025-02-06 18:52:04,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2025-02-06 18:52:04,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2025-02-06 18:52:04,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:52:04,710 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:04,717 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:52:04,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:52:04,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:52:04 BasicIcfg [2025-02-06 18:52:04,722 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:52:04,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:52:04,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:52:04,723 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:52:04,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:48" (3/4) ... [2025-02-06 18:52:04,725 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:52:04,727 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:52:04,727 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:52:04,727 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-06 18:52:04,734 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 134 nodes and edges [2025-02-06 18:52:04,736 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2025-02-06 18:52:04,736 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-02-06 18:52:04,736 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 18:52:04,820 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:52:04,820 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:52:04,820 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:52:04,822 INFO L158 Benchmark]: Toolchain (without parser) took 17465.21ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 112.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 602.9MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,822 INFO L158 Benchmark]: CDTParser took 1.46ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:52:04,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.15ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.6MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.05ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.2MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,822 INFO L158 Benchmark]: Boogie Preprocessor took 52.30ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:52:04,822 INFO L158 Benchmark]: IcfgBuilder took 1092.34ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 61.9MB in the end (delta: 32.4MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,823 INFO L158 Benchmark]: TraceAbstraction took 15872.18ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 61.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 546.2MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,823 INFO L158 Benchmark]: Witness Printer took 97.71ms. Allocated memory is still 1.9GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:04,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.46ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.15ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.6MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.05ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.2MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.30ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 94.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1092.34ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 61.9MB in the end (delta: 32.4MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15872.18ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 61.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 546.2MB. Max. memory is 16.1GB. * Witness Printer took 97.71ms. Allocated memory is still 1.9GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: 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 7 procedures, 108 locations, 41 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: 15.7s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 680 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 624 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 285 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2186 IncrementalHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 30 mSDtfsCounter, 2186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=7, InterpolantAutomatonStates: 80, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 331 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 360 ConstructedInterpolants, 0 QuantifiedInterpolants, 1138 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1036 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 93/133 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:52:04,848 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