./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-inc-subseq.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-more-inc-subseq.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 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:53:24,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:53:24,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:53:24,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:53:24,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:53:25,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:53:25,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:53:25,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:53:25,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:53:25,018 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:53:25,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:53:25,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:53:25,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:53:25,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:53:25,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:53:25,021 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:53:25,021 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:25,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:53:25,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:53:25,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:53:25,023 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 -> 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 [2025-02-06 18:53:25,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:53:25,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:53:25,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:53:25,244 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:53:25,244 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:53:25,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2025-02-06 18:53:26,344 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/572b1ecac/6dab832e10de4b2d8b8401b8841b50d0/FLAGa6bca8289 [2025-02-06 18:53:26,580 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:53:26,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2025-02-06 18:53:26,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/572b1ecac/6dab832e10de4b2d8b8401b8841b50d0/FLAGa6bca8289 [2025-02-06 18:53:26,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/572b1ecac/6dab832e10de4b2d8b8401b8841b50d0 [2025-02-06 18:53:26,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:53:26,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:53:26,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:26,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:53:26,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:53:26,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:26" (1/1) ... [2025-02-06 18:53:26,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb81497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:26, skipping insertion in model container [2025-02-06 18:53:26,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:26" (1/1) ... [2025-02-06 18:53:26,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:53:27,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:27,053 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:53:27,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:27,076 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:53:27,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27 WrapperNode [2025-02-06 18:53:27,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:27,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:27,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:53:27,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:53:27,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,118 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 187 [2025-02-06 18:53:27,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:27,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:53:27,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:53:27,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:53:27,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,147 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-06 18:53:27,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,159 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:53:27,168 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:53:27,168 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:53:27,169 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:53:27,169 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (1/1) ... [2025-02-06 18:53:27,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:27,197 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 18:53:27,203 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 18:53:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:53:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:53:27,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:53:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:53:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:53:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:53:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:53:27,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:53:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:53:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:53:27,221 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 18:53:27,309 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:53:27,311 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:53:27,612 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:53:27,612 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:53:27,795 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:53:27,796 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:53:27,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:27 BoogieIcfgContainer [2025-02-06 18:53:27,796 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:53:27,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:53:27,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:53:27,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:53:27,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:53:26" (1/3) ... [2025-02-06 18:53:27,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a97a952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:27, skipping insertion in model container [2025-02-06 18:53:27,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:27" (2/3) ... [2025-02-06 18:53:27,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a97a952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:27, skipping insertion in model container [2025-02-06 18:53:27,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:27" (3/3) ... [2025-02-06 18:53:27,805 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2025-02-06 18:53:27,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:53:27,820 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-inc-subseq.wvr.c that has 3 procedures, 39 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-06 18:53:27,820 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:53:27,866 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:53:27,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 100 flow [2025-02-06 18:53:27,910 INFO L124 PetriNetUnfolderBase]: 5/41 cut-off events. [2025-02-06 18:53:27,911 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:53:27,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 5/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2025-02-06 18:53:27,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 43 transitions, 100 flow [2025-02-06 18:53:27,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 87 flow [2025-02-06 18:53:27,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:53:27,934 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;@76dd334b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:53:27,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-02-06 18:53:27,937 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:53:27,939 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:53:27,939 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:53:27,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:27,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:53:27,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:27,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash 512980, now seen corresponding path program 1 times [2025-02-06 18:53:27,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:27,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039709974] [2025-02-06 18:53:27,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:28,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:53:28,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:53:28,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:28,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:28,178 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 18:53:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:28,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039709974] [2025-02-06 18:53:28,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039709974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:28,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:28,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:53:28,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226659263] [2025-02-06 18:53:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:28,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:28,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:28,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:28,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:28,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:28,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 18:53:28,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:28,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:28,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:28,383 INFO L124 PetriNetUnfolderBase]: 237/406 cut-off events. [2025-02-06 18:53:28,383 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-02-06 18:53:28,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 406 events. 237/406 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1683 event pairs, 171 based on Foata normal form. 2/291 useless extension candidates. Maximal degree in co-relation 757. Up to 391 conditions per place. [2025-02-06 18:53:28,387 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 31 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2025-02-06 18:53:28,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 171 flow [2025-02-06 18:53:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-02-06 18:53:28,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2025-02-06 18:53:28,398 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 87 flow. Second operand 4 states and 72 transitions. [2025-02-06 18:53:28,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 171 flow [2025-02-06 18:53:28,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:53:28,405 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 138 flow [2025-02-06 18:53:28,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2025-02-06 18:53:28,411 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2025-02-06 18:53:28,411 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 138 flow [2025-02-06 18:53:28,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 18:53:28,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:28,411 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:53:28,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:53:28,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:28,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1897252631, now seen corresponding path program 1 times [2025-02-06 18:53:28,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:28,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581752825] [2025-02-06 18:53:28,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:28,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:28,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:28,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:28,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:28,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:28,560 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 18:53:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:28,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581752825] [2025-02-06 18:53:28,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581752825] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:28,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174065517] [2025-02-06 18:53:28,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:28,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:28,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:28,563 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 18:53:28,564 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 18:53:28,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:28,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:28,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:28,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:28,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:28,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:28,655 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 18:53:28,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:53:28,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174065517] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:28,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:53:28,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:53:28,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259466839] [2025-02-06 18:53:28,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:28,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:53:28,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:28,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:53:28,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:53:28,673 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:28,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 18:53:28,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:28,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:28,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:28,809 INFO L124 PetriNetUnfolderBase]: 237/404 cut-off events. [2025-02-06 18:53:28,809 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 18:53:28,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 404 events. 237/404 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1683 event pairs, 171 based on Foata normal form. 2/292 useless extension candidates. Maximal degree in co-relation 795. Up to 381 conditions per place. [2025-02-06 18:53:28,811 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 24 selfloop transitions, 12 changer transitions 0/41 dead transitions. [2025-02-06 18:53:28,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 202 flow [2025-02-06 18:53:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2025-02-06 18:53:28,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31007751937984496 [2025-02-06 18:53:28,812 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 138 flow. Second operand 6 states and 80 transitions. [2025-02-06 18:53:28,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 202 flow [2025-02-06 18:53:28,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:53:28,815 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 154 flow [2025-02-06 18:53:28,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2025-02-06 18:53:28,816 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2025-02-06 18:53:28,816 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 154 flow [2025-02-06 18:53:28,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 18:53:28,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:28,816 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:53:28,823 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 18:53:29,021 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 18:53:29,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:29,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:29,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1314711013, now seen corresponding path program 1 times [2025-02-06 18:53:29,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:29,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179134532] [2025-02-06 18:53:29,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:29,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:29,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:29,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:29,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:29,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:29,118 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 18:53:29,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179134532] [2025-02-06 18:53:29,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179134532] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058422409] [2025-02-06 18:53:29,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:29,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:29,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:29,121 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 18:53:29,122 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 18:53:29,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:29,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:29,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:29,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:29,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:29,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:29,187 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 18:53:29,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:29,219 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 18:53:29,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058422409] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:29,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:29,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:53:29,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479912996] [2025-02-06 18:53:29,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:29,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:53:29,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:29,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:53:29,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:53:29,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:29,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:29,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:29,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:29,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:29,374 INFO L124 PetriNetUnfolderBase]: 243/428 cut-off events. [2025-02-06 18:53:29,374 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2025-02-06 18:53:29,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 428 events. 243/428 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1846 event pairs, 171 based on Foata normal form. 6/319 useless extension candidates. Maximal degree in co-relation 797. Up to 392 conditions per place. [2025-02-06 18:53:29,377 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 29 selfloop transitions, 25 changer transitions 0/59 dead transitions. [2025-02-06 18:53:29,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 376 flow [2025-02-06 18:53:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 130 transitions. [2025-02-06 18:53:29,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3023255813953488 [2025-02-06 18:53:29,380 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 154 flow. Second operand 10 states and 130 transitions. [2025-02-06 18:53:29,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 376 flow [2025-02-06 18:53:29,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 318 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:29,382 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 294 flow [2025-02-06 18:53:29,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2025-02-06 18:53:29,382 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2025-02-06 18:53:29,382 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 294 flow [2025-02-06 18:53:29,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:29,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:29,382 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:29,390 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 18:53:29,589 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 18:53:29,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:29,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:29,590 INFO L85 PathProgramCache]: Analyzing trace with hash -878762704, now seen corresponding path program 1 times [2025-02-06 18:53:29,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:29,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386180297] [2025-02-06 18:53:29,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:29,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:29,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:53:29,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:53:29,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:29,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:29,636 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 18:53:29,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386180297] [2025-02-06 18:53:29,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386180297] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:29,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:29,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:53:29,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857066461] [2025-02-06 18:53:29,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:29,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:53:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:29,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:53:29,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:53:29,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:29,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 18:53:29,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:29,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:29,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:29,725 INFO L124 PetriNetUnfolderBase]: 371/647 cut-off events. [2025-02-06 18:53:29,726 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2025-02-06 18:53:29,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 647 events. 371/647 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3051 event pairs, 118 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1333. Up to 347 conditions per place. [2025-02-06 18:53:29,729 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 68 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2025-02-06 18:53:29,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 473 flow [2025-02-06 18:53:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:53:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:53:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-02-06 18:53:29,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.627906976744186 [2025-02-06 18:53:29,730 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 294 flow. Second operand 3 states and 81 transitions. [2025-02-06 18:53:29,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 473 flow [2025-02-06 18:53:29,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 77 transitions, 449 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:29,732 INFO L231 Difference]: Finished difference. Result has 53 places, 60 transitions, 284 flow [2025-02-06 18:53:29,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=53, PETRI_TRANSITIONS=60} [2025-02-06 18:53:29,732 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2025-02-06 18:53:29,733 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 60 transitions, 284 flow [2025-02-06 18:53:29,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 18:53:29,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:29,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:29,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:53:29,733 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -878762737, now seen corresponding path program 1 times [2025-02-06 18:53:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482711432] [2025-02-06 18:53:29,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:29,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:53:29,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:53:29,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:29,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:29,855 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 18:53:29,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482711432] [2025-02-06 18:53:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482711432] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:29,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:29,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:53:29,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396613664] [2025-02-06 18:53:29,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:29,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:29,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:29,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:29,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:29,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:29,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 60 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:29,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:29,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:29,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:29,980 INFO L124 PetriNetUnfolderBase]: 488/890 cut-off events. [2025-02-06 18:53:29,980 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2025-02-06 18:53:29,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 890 events. 488/890 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4580 event pairs, 390 based on Foata normal form. 37/728 useless extension candidates. Maximal degree in co-relation 1937. Up to 626 conditions per place. [2025-02-06 18:53:29,984 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 75 selfloop transitions, 5 changer transitions 3/90 dead transitions. [2025-02-06 18:53:29,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 90 transitions, 586 flow [2025-02-06 18:53:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:53:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:53:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-02-06 18:53:29,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2025-02-06 18:53:29,986 INFO L175 Difference]: Start difference. First operand has 53 places, 60 transitions, 284 flow. Second operand 5 states and 110 transitions. [2025-02-06 18:53:29,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 90 transitions, 586 flow [2025-02-06 18:53:29,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 90 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:53:29,988 INFO L231 Difference]: Finished difference. Result has 58 places, 62 transitions, 321 flow [2025-02-06 18:53:29,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=58, PETRI_TRANSITIONS=62} [2025-02-06 18:53:29,989 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2025-02-06 18:53:29,989 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 321 flow [2025-02-06 18:53:29,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:29,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:29,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:29,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:53:29,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:29,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1219910374, now seen corresponding path program 1 times [2025-02-06 18:53:29,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652865295] [2025-02-06 18:53:29,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:29,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:29,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:53:30,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:53:30,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:30,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:30,059 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 18:53:30,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652865295] [2025-02-06 18:53:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652865295] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:30,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:30,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:30,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713078726] [2025-02-06 18:53:30,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:30,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:53:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:30,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:53:30,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:53:30,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:30,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 18:53:30,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:30,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:30,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:30,165 INFO L124 PetriNetUnfolderBase]: 486/888 cut-off events. [2025-02-06 18:53:30,166 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2025-02-06 18:53:30,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2135 conditions, 888 events. 486/888 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4508 event pairs, 390 based on Foata normal form. 2/684 useless extension candidates. Maximal degree in co-relation 2039. Up to 850 conditions per place. [2025-02-06 18:53:30,169 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 46 selfloop transitions, 7 changer transitions 0/60 dead transitions. [2025-02-06 18:53:30,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 60 transitions, 411 flow [2025-02-06 18:53:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:53:30,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:53:30,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-02-06 18:53:30,170 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2025-02-06 18:53:30,170 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 321 flow. Second operand 3 states and 64 transitions. [2025-02-06 18:53:30,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 60 transitions, 411 flow [2025-02-06 18:53:30,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 60 transitions, 399 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:30,172 INFO L231 Difference]: Finished difference. Result has 58 places, 60 transitions, 307 flow [2025-02-06 18:53:30,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=58, PETRI_TRANSITIONS=60} [2025-02-06 18:53:30,174 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2025-02-06 18:53:30,174 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 60 transitions, 307 flow [2025-02-06 18:53:30,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 18:53:30,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:30,174 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:30,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:53:30,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:30,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:30,174 INFO L85 PathProgramCache]: Analyzing trace with hash 783525672, now seen corresponding path program 1 times [2025-02-06 18:53:30,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:30,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287895995] [2025-02-06 18:53:30,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:30,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:30,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:30,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:30,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:30,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:53:30,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:30,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287895995] [2025-02-06 18:53:30,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287895995] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:30,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228909426] [2025-02-06 18:53:30,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:30,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:30,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:30,220 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 18:53:30,222 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 18:53:30,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:30,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:30,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:30,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:30,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 18:53:30,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:30,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:30,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228909426] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:30,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:30,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2025-02-06 18:53:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017784871] [2025-02-06 18:53:30,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:30,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 18:53:30,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:30,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 18:53:30,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2025-02-06 18:53:30,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:30,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 60 transitions, 307 flow. Second operand has 15 states, 15 states have (on average 9.2) internal successors, (138), 15 states have internal predecessors, (138), 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 18:53:30,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:30,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:30,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:30,873 INFO L124 PetriNetUnfolderBase]: 693/1250 cut-off events. [2025-02-06 18:53:30,873 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2025-02-06 18:53:30,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 1250 events. 693/1250 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6623 event pairs, 248 based on Foata normal form. 0/995 useless extension candidates. Maximal degree in co-relation 2841. Up to 359 conditions per place. [2025-02-06 18:53:30,881 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 83 selfloop transitions, 32 changer transitions 3/123 dead transitions. [2025-02-06 18:53:30,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 123 transitions, 710 flow [2025-02-06 18:53:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:53:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:53:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 185 transitions. [2025-02-06 18:53:30,882 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35852713178294576 [2025-02-06 18:53:30,882 INFO L175 Difference]: Start difference. First operand has 58 places, 60 transitions, 307 flow. Second operand 12 states and 185 transitions. [2025-02-06 18:53:30,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 123 transitions, 710 flow [2025-02-06 18:53:30,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 123 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:53:30,886 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 375 flow [2025-02-06 18:53:30,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=375, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2025-02-06 18:53:30,887 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2025-02-06 18:53:30,887 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 375 flow [2025-02-06 18:53:30,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.2) internal successors, (138), 15 states have internal predecessors, (138), 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 18:53:30,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:30,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:30,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:31,088 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 18:53:31,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:31,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1247875649, now seen corresponding path program 1 times [2025-02-06 18:53:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938148243] [2025-02-06 18:53:31,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:31,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:31,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:31,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:31,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:31,222 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 18:53:31,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:31,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938148243] [2025-02-06 18:53:31,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938148243] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:31,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460603696] [2025-02-06 18:53:31,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:31,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:31,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:31,224 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 18:53:31,226 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 18:53:31,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:31,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:31,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:31,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:31,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:53:31,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:31,307 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 18:53:31,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:53:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460603696] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:31,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:53:31,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2025-02-06 18:53:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257447572] [2025-02-06 18:53:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:31,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:53:31,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:31,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:53:31,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:53:31,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:31,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 18:53:31,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:31,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:31,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:31,400 INFO L124 PetriNetUnfolderBase]: 564/1040 cut-off events. [2025-02-06 18:53:31,401 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2025-02-06 18:53:31,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1040 events. 564/1040 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5301 event pairs, 435 based on Foata normal form. 0/942 useless extension candidates. Maximal degree in co-relation 2501. Up to 998 conditions per place. [2025-02-06 18:53:31,404 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 46 selfloop transitions, 1 changer transitions 7/61 dead transitions. [2025-02-06 18:53:31,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 61 transitions, 475 flow [2025-02-06 18:53:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:53:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:53:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-02-06 18:53:31,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2025-02-06 18:53:31,405 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 375 flow. Second operand 3 states and 60 transitions. [2025-02-06 18:53:31,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 61 transitions, 475 flow [2025-02-06 18:53:31,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 61 transitions, 464 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:53:31,409 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 326 flow [2025-02-06 18:53:31,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2025-02-06 18:53:31,409 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 24 predicate places. [2025-02-06 18:53:31,410 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 326 flow [2025-02-06 18:53:31,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 18:53:31,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:31,410 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:53:31,417 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 18:53:31,611 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 18:53:31,611 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:31,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash 627191962, now seen corresponding path program 2 times [2025-02-06 18:53:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564011599] [2025-02-06 18:53:31,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:31,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:31,619 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:53:31,622 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:53:31,622 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:31,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:31,645 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 18:53:31,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564011599] [2025-02-06 18:53:31,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564011599] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955466969] [2025-02-06 18:53:31,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:31,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:31,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:31,648 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 18:53:31,649 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 18:53:31,687 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:53:31,693 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:53:31,693 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:31,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:31,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:53:31,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:31,714 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 18:53:31,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:31,732 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 18:53:31,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955466969] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:31,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:31,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:53:31,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596875989] [2025-02-06 18:53:31,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:31,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:31,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:31,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:31,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:31,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 18:53:31,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:31,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:31,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:31,807 INFO L124 PetriNetUnfolderBase]: 304/567 cut-off events. [2025-02-06 18:53:31,808 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2025-02-06 18:53:31,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 567 events. 304/567 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2383 event pairs, 228 based on Foata normal form. 1/499 useless extension candidates. Maximal degree in co-relation 1442. Up to 532 conditions per place. [2025-02-06 18:53:31,811 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 32 selfloop transitions, 16 changer transitions 0/53 dead transitions. [2025-02-06 18:53:31,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 53 transitions, 412 flow [2025-02-06 18:53:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2025-02-06 18:53:31,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3081395348837209 [2025-02-06 18:53:31,812 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 326 flow. Second operand 4 states and 53 transitions. [2025-02-06 18:53:31,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 53 transitions, 412 flow [2025-02-06 18:53:31,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 409 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:31,814 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 345 flow [2025-02-06 18:53:31,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=345, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2025-02-06 18:53:31,814 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 18 predicate places. [2025-02-06 18:53:31,814 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 345 flow [2025-02-06 18:53:31,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 18:53:31,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:31,814 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-06 18:53:31,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:32,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:32,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:32,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1776773554, now seen corresponding path program 1 times [2025-02-06 18:53:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:32,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23220081] [2025-02-06 18:53:32,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:32,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:32,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:53:32,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:53:32,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:32,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23220081] [2025-02-06 18:53:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23220081] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227309966] [2025-02-06 18:53:32,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:32,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:32,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:32,147 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 18:53:32,149 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 18:53:32,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:53:32,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:53:32,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:32,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:32,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 18:53:32,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:32,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:32,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227309966] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:32,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:32,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-06 18:53:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110022134] [2025-02-06 18:53:32,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:32,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 18:53:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:32,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 18:53:32,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-06 18:53:32,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:32,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 345 flow. Second operand has 24 states, 24 states have (on average 8.083333333333334) internal successors, (194), 24 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:32,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:32,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:32,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:32,653 INFO L124 PetriNetUnfolderBase]: 322/639 cut-off events. [2025-02-06 18:53:32,653 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2025-02-06 18:53:32,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 639 events. 322/639 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2731 event pairs, 228 based on Foata normal form. 12/576 useless extension candidates. Maximal degree in co-relation 1711. Up to 528 conditions per place. [2025-02-06 18:53:32,656 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 24 selfloop transitions, 60 changer transitions 0/89 dead transitions. [2025-02-06 18:53:32,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 837 flow [2025-02-06 18:53:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:53:32,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:53:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 242 transitions. [2025-02-06 18:53:32,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2558139534883721 [2025-02-06 18:53:32,657 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 345 flow. Second operand 22 states and 242 transitions. [2025-02-06 18:53:32,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 837 flow [2025-02-06 18:53:32,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 89 transitions, 769 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:53:32,663 INFO L231 Difference]: Finished difference. Result has 83 places, 89 transitions, 767 flow [2025-02-06 18:53:32,663 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=767, PETRI_PLACES=83, PETRI_TRANSITIONS=89} [2025-02-06 18:53:32,663 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 42 predicate places. [2025-02-06 18:53:32,663 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 89 transitions, 767 flow [2025-02-06 18:53:32,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.083333333333334) internal successors, (194), 24 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:32,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:32,664 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:32,671 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 18:53:32,864 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,SelfDestructingSolverStorable9 [2025-02-06 18:53:32,865 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:32,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:32,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2026239354, now seen corresponding path program 1 times [2025-02-06 18:53:32,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:32,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111348644] [2025-02-06 18:53:32,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:32,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:32,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:53:32,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:53:32,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:32,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:53:32,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111348644] [2025-02-06 18:53:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111348644] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136524093] [2025-02-06 18:53:32,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:32,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:32,930 INFO L229 MonitoredProcess]: Starting monitored process 8 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 18:53:32,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:53:32,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:53:32,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:53:32,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:32,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:32,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:53:32,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:53:33,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:53:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136524093] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:33,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:33,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-06 18:53:33,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540581007] [2025-02-06 18:53:33,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:33,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:53:33,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:33,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:53:33,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:53:33,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:33,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 89 transitions, 767 flow. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 18:53:33,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:33,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:33,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:33,209 INFO L124 PetriNetUnfolderBase]: 721/1314 cut-off events. [2025-02-06 18:53:33,209 INFO L125 PetriNetUnfolderBase]: For 593/593 co-relation queries the response was YES. [2025-02-06 18:53:33,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3354 conditions, 1314 events. 721/1314 cut-off events. For 593/593 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 6247 event pairs, 93 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 3330. Up to 303 conditions per place. [2025-02-06 18:53:33,214 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 133 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2025-02-06 18:53:33,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 144 transitions, 1183 flow [2025-02-06 18:53:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2025-02-06 18:53:33,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736434108527132 [2025-02-06 18:53:33,215 INFO L175 Difference]: Start difference. First operand has 83 places, 89 transitions, 767 flow. Second operand 6 states and 148 transitions. [2025-02-06 18:53:33,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 144 transitions, 1183 flow [2025-02-06 18:53:33,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 144 transitions, 1029 flow, removed 47 selfloop flow, removed 9 redundant places. [2025-02-06 18:53:33,220 INFO L231 Difference]: Finished difference. Result has 82 places, 92 transitions, 649 flow [2025-02-06 18:53:33,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=82, PETRI_TRANSITIONS=92} [2025-02-06 18:53:33,221 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 41 predicate places. [2025-02-06 18:53:33,221 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 92 transitions, 649 flow [2025-02-06 18:53:33,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 18:53:33,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:33,221 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:33,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:33,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:33,421 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:33,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 741911505, now seen corresponding path program 2 times [2025-02-06 18:53:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:33,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597014326] [2025-02-06 18:53:33,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:33,427 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 18:53:33,434 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:33,435 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:53:33,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:33,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:33,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597014326] [2025-02-06 18:53:33,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597014326] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:33,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922881257] [2025-02-06 18:53:33,473 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:33,476 INFO L229 MonitoredProcess]: Starting monitored process 9 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 18:53:33,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:53:33,525 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 18:53:33,542 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:33,542 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:53:33,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:33,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:53:33,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:33,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:33,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922881257] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:33,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:33,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:53:33,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820182475] [2025-02-06 18:53:33,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:33,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:33,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:33,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:33,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:33,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2025-02-06 18:53:33,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 92 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:33,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:33,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2025-02-06 18:53:33,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:33,715 INFO L124 PetriNetUnfolderBase]: 695/1268 cut-off events. [2025-02-06 18:53:33,715 INFO L125 PetriNetUnfolderBase]: For 761/761 co-relation queries the response was YES. [2025-02-06 18:53:33,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 1268 events. 695/1268 cut-off events. For 761/761 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6217 event pairs, 441 based on Foata normal form. 20/1179 useless extension candidates. Maximal degree in co-relation 3260. Up to 1019 conditions per place. [2025-02-06 18:53:33,718 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 56 selfloop transitions, 1 changer transitions 40/100 dead transitions. [2025-02-06 18:53:33,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 100 transitions, 849 flow [2025-02-06 18:53:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:33,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-06 18:53:33,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2025-02-06 18:53:33,719 INFO L175 Difference]: Start difference. First operand has 82 places, 92 transitions, 649 flow. Second operand 4 states and 76 transitions. [2025-02-06 18:53:33,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 100 transitions, 849 flow [2025-02-06 18:53:33,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 100 transitions, 831 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:33,724 INFO L231 Difference]: Finished difference. Result has 79 places, 60 transitions, 516 flow [2025-02-06 18:53:33,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=516, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2025-02-06 18:53:33,724 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 38 predicate places. [2025-02-06 18:53:33,724 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 516 flow [2025-02-06 18:53:33,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:33,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:33,725 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2025-02-06 18:53:33,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:33,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:33,929 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-02-06 18:53:33,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 484993298, now seen corresponding path program 2 times [2025-02-06 18:53:33,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:33,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670300944] [2025-02-06 18:53:33,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:33,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 18:53:33,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 18:53:33,949 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:53:33,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:53:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670300944] [2025-02-06 18:53:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670300944] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870073000] [2025-02-06 18:53:34,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:34,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:34,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:34,025 INFO L229 MonitoredProcess]: Starting monitored process 10 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 18:53:34,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 18:53:34,071 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 18:53:34,090 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 18:53:34,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:53:34,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:34,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:53:34,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:53:34,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:53:34,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870073000] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:34,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:34,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-06 18:53:34,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898080381] [2025-02-06 18:53:34,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:34,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:34,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:34,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:34,173 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2025-02-06 18:53:34,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 60 transitions, 516 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 18:53:34,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:34,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2025-02-06 18:53:34,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:34,197 INFO L124 PetriNetUnfolderBase]: 12/111 cut-off events. [2025-02-06 18:53:34,197 INFO L125 PetriNetUnfolderBase]: For 325/325 co-relation queries the response was YES. [2025-02-06 18:53:34,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 111 events. 12/111 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 193 event pairs, 0 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 438. Up to 45 conditions per place. [2025-02-06 18:53:34,198 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2025-02-06 18:53:34,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 608 flow [2025-02-06 18:53:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-02-06 18:53:34,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20348837209302326 [2025-02-06 18:53:34,199 INFO L175 Difference]: Start difference. First operand has 79 places, 60 transitions, 516 flow. Second operand 4 states and 35 transitions. [2025-02-06 18:53:34,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 608 flow [2025-02-06 18:53:34,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 560 flow, removed 2 selfloop flow, removed 13 redundant places. [2025-02-06 18:53:34,200 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2025-02-06 18:53:34,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2025-02-06 18:53:34,201 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2025-02-06 18:53:34,201 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2025-02-06 18:53:34,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 18:53:34,203 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-02-06 18:53:34,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-02-06 18:53:34,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:34,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:34,412 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:34,415 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:53:34,415 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:53:34,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:53:34 BasicIcfg [2025-02-06 18:53:34,421 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:53:34,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:53:34,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:53:34,422 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:53:34,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:27" (3/4) ... [2025-02-06 18:53:34,424 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:53:34,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:53:34,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:53:34,433 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 103 nodes and edges [2025-02-06 18:53:34,433 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-02-06 18:53:34,433 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-02-06 18:53:34,434 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 18:53:34,503 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:53:34,503 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:53:34,503 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:53:34,504 INFO L158 Benchmark]: Toolchain (without parser) took 7577.38ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 122.1MB in the beginning and 86.9MB in the end (delta: 35.2MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2025-02-06 18:53:34,504 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 201.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:53:34,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.93ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 109.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:53:34,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.85ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 108.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:53:34,506 INFO L158 Benchmark]: Boogie Preprocessor took 47.92ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:53:34,506 INFO L158 Benchmark]: IcfgBuilder took 629.08ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 54.9MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 18:53:34,507 INFO L158 Benchmark]: TraceAbstraction took 6623.21ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 93.4MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:53:34,507 INFO L158 Benchmark]: Witness Printer took 81.12ms. Allocated memory is still 201.3MB. Free memory was 93.4MB in the beginning and 86.9MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:53:34,508 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 201.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.93ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 109.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.85ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 108.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.92ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 629.08ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 54.9MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6623.21ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 93.4MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.12ms. Allocated memory is still 201.3MB. Free memory was 93.4MB in the beginning and 86.9MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - 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: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 61 locations, 18 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: 6.5s, OverallIterations: 13, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 571 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 526 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1528 IncrementalHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 18 mSDtfsCounter, 1528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 339 GetRequests, 230 SyntacticMatches, 6 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=767occurred in iteration=10, InterpolantAutomatonStates: 86, 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, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 334 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 437 ConstructedInterpolants, 0 QuantifiedInterpolants, 1395 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1279 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 29 InterpolantComputations, 6 PerfectInterpolantSequences, 616/840 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:53:34,526 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