./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-vector-add.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-vector-add.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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:53:43,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:53:43,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:53:43,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:53:43,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:53:43,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:53:43,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:53:43,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:53:43,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:53:43,776 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:53:43,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:53:43,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:53:43,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:53:43,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:53:43,776 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:53:43,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:53:43,777 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:53:43,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:43,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:53:43,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:53:43,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:53:43,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:53:43,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:53:43,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:53:43,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:53:43,779 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 -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2025-02-06 18:53:43,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:53:43,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:53:43,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:53:43,985 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:53:43,985 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:53:43,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2025-02-06 18:53:45,030 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/036dd7868/c757be7242754fa2b8d2d8d68c219361/FLAG5cd139174 [2025-02-06 18:53:45,223 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:53:45,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2025-02-06 18:53:45,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/036dd7868/c757be7242754fa2b8d2d8d68c219361/FLAG5cd139174 [2025-02-06 18:53:45,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/036dd7868/c757be7242754fa2b8d2d8d68c219361 [2025-02-06 18:53:45,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:53:45,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:53:45,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:45,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:53:45,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:53:45,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5338fc67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45, skipping insertion in model container [2025-02-06 18:53:45,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:53:45,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:45,782 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:53:45,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:45,815 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:53:45,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45 WrapperNode [2025-02-06 18:53:45,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:45,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:45,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:53:45,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:53:45,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,847 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 183 [2025-02-06 18:53:45,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:45,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:53:45,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:53:45,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:53:45,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,870 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2025-02-06 18:53:45,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,880 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:53:45,888 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:53:45,889 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:53:45,890 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:53:45,890 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (1/1) ... [2025-02-06 18:53:45,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:45,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:45,921 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 18:53:45,928 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 18:53:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:53:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:53:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:53:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:53:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:53:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:53:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:53:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:53:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:53:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:53:45,949 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 18:53:46,023 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:53:46,024 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:53:46,280 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:53:46,281 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:53:46,562 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:53:46,563 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:53:46,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:46 BoogieIcfgContainer [2025-02-06 18:53:46,564 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:53:46,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:53:46,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:53:46,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:53:46,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:53:45" (1/3) ... [2025-02-06 18:53:46,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1169f6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:46, skipping insertion in model container [2025-02-06 18:53:46,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:45" (2/3) ... [2025-02-06 18:53:46,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1169f6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:46, skipping insertion in model container [2025-02-06 18:53:46,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:46" (3/3) ... [2025-02-06 18:53:46,573 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2025-02-06 18:53:46,590 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:53:46,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-vector-add.wvr.c that has 4 procedures, 53 locations, 1 initial locations, 7 loop locations, and 14 error locations. [2025-02-06 18:53:46,592 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:53:46,643 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:53:46,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 139 flow [2025-02-06 18:53:46,717 INFO L124 PetriNetUnfolderBase]: 7/56 cut-off events. [2025-02-06 18:53:46,718 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:53:46,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 7/56 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-06 18:53:46,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 59 transitions, 139 flow [2025-02-06 18:53:46,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 54 transitions, 123 flow [2025-02-06 18:53:46,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:53:46,744 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;@4009b088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:53:46,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 18:53:46,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:53:46,748 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:53:46,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:53:46,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:46,748 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:53:46,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:46,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 646736, now seen corresponding path program 1 times [2025-02-06 18:53:46,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:46,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83714559] [2025-02-06 18:53:46,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:46,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:46,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:53:46,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:53:46,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:46,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:46,989 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 18:53:46,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:46,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83714559] [2025-02-06 18:53:46,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83714559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:46,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:46,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:53:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050201378] [2025-02-06 18:53:46,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:46,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:46,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:47,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:47,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:47,040 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:47,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:47,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:47,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:47,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:47,205 INFO L124 PetriNetUnfolderBase]: 437/799 cut-off events. [2025-02-06 18:53:47,206 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2025-02-06 18:53:47,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 799 events. 437/799 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3641 event pairs, 306 based on Foata normal form. 4/611 useless extension candidates. Maximal degree in co-relation 1301. Up to 640 conditions per place. [2025-02-06 18:53:47,213 INFO L140 encePairwiseOnDemand]: 38/59 looper letters, 40 selfloop transitions, 13 changer transitions 0/66 dead transitions. [2025-02-06 18:53:47,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 253 flow [2025-02-06 18:53:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:47,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2025-02-06 18:53:47,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5296610169491526 [2025-02-06 18:53:47,223 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 123 flow. Second operand 4 states and 125 transitions. [2025-02-06 18:53:47,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 253 flow [2025-02-06 18:53:47,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 244 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:47,228 INFO L231 Difference]: Finished difference. Result has 58 places, 66 transitions, 230 flow [2025-02-06 18:53:47,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=58, PETRI_TRANSITIONS=66} [2025-02-06 18:53:47,232 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2025-02-06 18:53:47,232 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 66 transitions, 230 flow [2025-02-06 18:53:47,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:47,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:47,233 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:53:47,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:53:47,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:47,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2087638795, now seen corresponding path program 1 times [2025-02-06 18:53:47,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:47,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489304480] [2025-02-06 18:53:47,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:47,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:47,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:47,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:47,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:47,319 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 18:53:47,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:47,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489304480] [2025-02-06 18:53:47,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489304480] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:47,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238549304] [2025-02-06 18:53:47,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:47,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:47,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:47,324 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 18:53:47,329 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 18:53:47,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:47,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:47,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:47,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:47,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:47,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:47,432 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 18:53:47,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:53:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238549304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:47,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:53:47,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:53:47,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640864266] [2025-02-06 18:53:47,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:47,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:53:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:47,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:53:47,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:53:47,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:47,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 18:53:47,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:47,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:47,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:47,688 INFO L124 PetriNetUnfolderBase]: 437/795 cut-off events. [2025-02-06 18:53:47,689 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-06 18:53:47,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 795 events. 437/795 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3618 event pairs, 306 based on Foata normal form. 4/614 useless extension candidates. Maximal degree in co-relation 1429. Up to 620 conditions per place. [2025-02-06 18:53:47,696 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 27 selfloop transitions, 22 changer transitions 0/62 dead transitions. [2025-02-06 18:53:47,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 312 flow [2025-02-06 18:53:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-02-06 18:53:47,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4209039548022599 [2025-02-06 18:53:47,700 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 230 flow. Second operand 6 states and 149 transitions. [2025-02-06 18:53:47,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 312 flow [2025-02-06 18:53:47,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 312 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:53:47,702 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 258 flow [2025-02-06 18:53:47,702 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2025-02-06 18:53:47,702 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2025-02-06 18:53:47,702 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 258 flow [2025-02-06 18:53:47,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 18:53:47,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:47,705 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:53:47,712 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 18:53:47,909 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 18:53:47,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:47,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash 292293803, now seen corresponding path program 1 times [2025-02-06 18:53:47,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:47,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307103110] [2025-02-06 18:53:47,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:47,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:47,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:47,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:47,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:47,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:47,995 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 18:53:47,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307103110] [2025-02-06 18:53:47,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307103110] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279667488] [2025-02-06 18:53:47,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:47,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:47,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:47,997 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 18:53:47,999 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 18:53:48,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:48,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:48,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:48,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:48,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:48,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:48,070 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 18:53:48,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:48,100 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 18:53:48,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279667488] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:48,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:48,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:53:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656804329] [2025-02-06 18:53:48,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:48,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:53:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:48,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:53:48,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:53:48,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:48,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 258 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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 18:53:48,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:48,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:48,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:48,372 INFO L124 PetriNetUnfolderBase]: 449/843 cut-off events. [2025-02-06 18:53:48,373 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2025-02-06 18:53:48,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 843 events. 449/843 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4037 event pairs, 306 based on Foata normal form. 12/671 useless extension candidates. Maximal degree in co-relation 1431. Up to 639 conditions per place. [2025-02-06 18:53:48,381 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 36 selfloop transitions, 49 changer transitions 0/98 dead transitions. [2025-02-06 18:53:48,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 662 flow [2025-02-06 18:53:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:48,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2025-02-06 18:53:48,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43559322033898307 [2025-02-06 18:53:48,385 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 258 flow. Second operand 10 states and 257 transitions. [2025-02-06 18:53:48,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 662 flow [2025-02-06 18:53:48,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 98 transitions, 554 flow, removed 20 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:48,391 INFO L231 Difference]: Finished difference. Result has 66 places, 98 transitions, 548 flow [2025-02-06 18:53:48,391 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=548, PETRI_PLACES=66, PETRI_TRANSITIONS=98} [2025-02-06 18:53:48,392 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2025-02-06 18:53:48,392 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 98 transitions, 548 flow [2025-02-06 18:53:48,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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 18:53:48,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:48,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:48,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:48,593 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 18:53:48,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:48,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1626743133, now seen corresponding path program 1 times [2025-02-06 18:53:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:48,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701983110] [2025-02-06 18:53:48,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:48,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:53:48,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:53:48,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:48,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:48,706 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 18:53:48,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:48,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701983110] [2025-02-06 18:53:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701983110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:48,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:48,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692880278] [2025-02-06 18:53:48,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:48,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:48,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:48,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:48,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:48,719 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:48,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 98 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 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 18:53:48,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:48,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:48,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:48,910 INFO L124 PetriNetUnfolderBase]: 883/1519 cut-off events. [2025-02-06 18:53:48,910 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2025-02-06 18:53:48,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1519 events. 883/1519 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7519 event pairs, 466 based on Foata normal form. 42/1215 useless extension candidates. Maximal degree in co-relation 2925. Up to 1001 conditions per place. [2025-02-06 18:53:48,915 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 108 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-02-06 18:53:48,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 127 transitions, 836 flow [2025-02-06 18:53:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:48,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2025-02-06 18:53:48,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.652542372881356 [2025-02-06 18:53:48,917 INFO L175 Difference]: Start difference. First operand has 66 places, 98 transitions, 548 flow. Second operand 4 states and 154 transitions. [2025-02-06 18:53:48,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 127 transitions, 836 flow [2025-02-06 18:53:48,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 127 transitions, 786 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:48,920 INFO L231 Difference]: Finished difference. Result has 69 places, 101 transitions, 527 flow [2025-02-06 18:53:48,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=527, PETRI_PLACES=69, PETRI_TRANSITIONS=101} [2025-02-06 18:53:48,921 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places. [2025-02-06 18:53:48,921 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 101 transitions, 527 flow [2025-02-06 18:53:48,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 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 18:53:48,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:48,921 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:48,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:53:48,921 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:48,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -112548387, now seen corresponding path program 1 times [2025-02-06 18:53:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584405603] [2025-02-06 18:53:48,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:48,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:53:48,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:53:48,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:48,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:48,990 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 18:53:48,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584405603] [2025-02-06 18:53:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584405603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:48,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931619346] [2025-02-06 18:53:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:48,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:48,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:48,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:48,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:48,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 101 transitions, 527 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:53:48,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:48,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:48,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:49,208 INFO L124 PetriNetUnfolderBase]: 1399/2287 cut-off events. [2025-02-06 18:53:49,209 INFO L125 PetriNetUnfolderBase]: For 935/1007 co-relation queries the response was YES. [2025-02-06 18:53:49,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5374 conditions, 2287 events. 1399/2287 cut-off events. For 935/1007 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11815 event pairs, 724 based on Foata normal form. 64/1931 useless extension candidates. Maximal degree in co-relation 5249. Up to 1517 conditions per place. [2025-02-06 18:53:49,221 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 115 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2025-02-06 18:53:49,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 134 transitions, 875 flow [2025-02-06 18:53:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:49,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2025-02-06 18:53:49,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2025-02-06 18:53:49,223 INFO L175 Difference]: Start difference. First operand has 69 places, 101 transitions, 527 flow. Second operand 4 states and 152 transitions. [2025-02-06 18:53:49,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 134 transitions, 875 flow [2025-02-06 18:53:49,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 134 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:53:49,229 INFO L231 Difference]: Finished difference. Result has 73 places, 104 transitions, 553 flow [2025-02-06 18:53:49,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=73, PETRI_TRANSITIONS=104} [2025-02-06 18:53:49,230 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2025-02-06 18:53:49,230 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 104 transitions, 553 flow [2025-02-06 18:53:49,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:53:49,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:49,230 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:49,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:53:49,230 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:49,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2105686296, now seen corresponding path program 1 times [2025-02-06 18:53:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:49,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51333009] [2025-02-06 18:53:49,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:49,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:49,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:53:49,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:53:49,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:49,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:53:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51333009] [2025-02-06 18:53:49,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51333009] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:49,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:49,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:53:49,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529606442] [2025-02-06 18:53:49,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:49,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:49,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:49,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:49,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:49,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2025-02-06 18:53:49,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 104 transitions, 553 flow. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 18:53:49,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:49,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2025-02-06 18:53:49,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:49,675 INFO L124 PetriNetUnfolderBase]: 1552/2880 cut-off events. [2025-02-06 18:53:49,675 INFO L125 PetriNetUnfolderBase]: For 1649/1667 co-relation queries the response was YES. [2025-02-06 18:53:49,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7326 conditions, 2880 events. 1552/2880 cut-off events. For 1649/1667 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 16208 event pairs, 952 based on Foata normal form. 62/2567 useless extension candidates. Maximal degree in co-relation 7113. Up to 1496 conditions per place. [2025-02-06 18:53:49,690 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 134 selfloop transitions, 35 changer transitions 0/186 dead transitions. [2025-02-06 18:53:49,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 186 transitions, 1301 flow [2025-02-06 18:53:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2025-02-06 18:53:49,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6751412429378532 [2025-02-06 18:53:49,691 INFO L175 Difference]: Start difference. First operand has 73 places, 104 transitions, 553 flow. Second operand 6 states and 239 transitions. [2025-02-06 18:53:49,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 186 transitions, 1301 flow [2025-02-06 18:53:49,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 186 transitions, 1292 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:53:49,698 INFO L231 Difference]: Finished difference. Result has 80 places, 120 transitions, 758 flow [2025-02-06 18:53:49,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=80, PETRI_TRANSITIONS=120} [2025-02-06 18:53:49,698 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places. [2025-02-06 18:53:49,698 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 120 transitions, 758 flow [2025-02-06 18:53:49,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 18:53:49,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:49,698 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:49,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:53:49,699 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash -807345577, now seen corresponding path program 1 times [2025-02-06 18:53:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609573615] [2025-02-06 18:53:49,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:49,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:53:49,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:53:49,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:49,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:49,765 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 18:53:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:49,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609573615] [2025-02-06 18:53:49,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609573615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:49,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:49,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:53:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268661043] [2025-02-06 18:53:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:49,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:49,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:49,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:49,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 120 transitions, 758 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 18:53:49,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:49,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:49,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:50,048 INFO L124 PetriNetUnfolderBase]: 1868/3076 cut-off events. [2025-02-06 18:53:50,048 INFO L125 PetriNetUnfolderBase]: For 2806/2993 co-relation queries the response was YES. [2025-02-06 18:53:50,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8516 conditions, 3076 events. 1868/3076 cut-off events. For 2806/2993 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15268 event pairs, 572 based on Foata normal form. 122/2756 useless extension candidates. Maximal degree in co-relation 8293. Up to 1144 conditions per place. [2025-02-06 18:53:50,061 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 132 selfloop transitions, 10 changer transitions 0/157 dead transitions. [2025-02-06 18:53:50,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 157 transitions, 1220 flow [2025-02-06 18:53:50,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:53:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:53:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2025-02-06 18:53:50,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5661016949152542 [2025-02-06 18:53:50,063 INFO L175 Difference]: Start difference. First operand has 80 places, 120 transitions, 758 flow. Second operand 5 states and 167 transitions. [2025-02-06 18:53:50,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 157 transitions, 1220 flow [2025-02-06 18:53:50,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 157 transitions, 1214 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 18:53:50,069 INFO L231 Difference]: Finished difference. Result has 83 places, 119 transitions, 770 flow [2025-02-06 18:53:50,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=770, PETRI_PLACES=83, PETRI_TRANSITIONS=119} [2025-02-06 18:53:50,070 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2025-02-06 18:53:50,070 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 119 transitions, 770 flow [2025-02-06 18:53:50,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 18:53:50,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:50,070 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:50,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:53:50,070 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:50,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:50,070 INFO L85 PathProgramCache]: Analyzing trace with hash 742091512, now seen corresponding path program 1 times [2025-02-06 18:53:50,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:50,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010533676] [2025-02-06 18:53:50,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:50,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:50,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:50,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:50,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:50,142 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 18:53:50,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:50,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010533676] [2025-02-06 18:53:50,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010533676] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:50,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:50,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414762316] [2025-02-06 18:53:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:50,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:50,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:50,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:50,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:50,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 119 transitions, 770 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 18:53:50,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:50,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:50,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:50,455 INFO L124 PetriNetUnfolderBase]: 1770/3091 cut-off events. [2025-02-06 18:53:50,455 INFO L125 PetriNetUnfolderBase]: For 3154/3199 co-relation queries the response was YES. [2025-02-06 18:53:50,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8890 conditions, 3091 events. 1770/3091 cut-off events. For 3154/3199 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 16241 event pairs, 1160 based on Foata normal form. 43/2819 useless extension candidates. Maximal degree in co-relation 8664. Up to 1793 conditions per place. [2025-02-06 18:53:50,477 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 125 selfloop transitions, 35 changer transitions 6/181 dead transitions. [2025-02-06 18:53:50,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 181 transitions, 1435 flow [2025-02-06 18:53:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:50,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 224 transitions. [2025-02-06 18:53:50,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.632768361581921 [2025-02-06 18:53:50,479 INFO L175 Difference]: Start difference. First operand has 83 places, 119 transitions, 770 flow. Second operand 6 states and 224 transitions. [2025-02-06 18:53:50,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 181 transitions, 1435 flow [2025-02-06 18:53:50,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 181 transitions, 1399 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:53:50,486 INFO L231 Difference]: Finished difference. Result has 86 places, 121 transitions, 847 flow [2025-02-06 18:53:50,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=847, PETRI_PLACES=86, PETRI_TRANSITIONS=121} [2025-02-06 18:53:50,487 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2025-02-06 18:53:50,488 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 121 transitions, 847 flow [2025-02-06 18:53:50,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 18:53:50,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:50,489 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:50,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:53:50,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:50,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1441074575, now seen corresponding path program 1 times [2025-02-06 18:53:50,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:50,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671704514] [2025-02-06 18:53:50,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:50,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:50,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:53:50,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:53:50,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:50,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:53:50,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:50,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671704514] [2025-02-06 18:53:50,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671704514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:50,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:50,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:53:50,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533845209] [2025-02-06 18:53:50,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:50,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:53:50,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:50,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:53:50,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:53:50,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2025-02-06 18:53:50,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 121 transitions, 847 flow. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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 18:53:50,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:50,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2025-02-06 18:53:50,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:50,930 INFO L124 PetriNetUnfolderBase]: 1274/2326 cut-off events. [2025-02-06 18:53:50,930 INFO L125 PetriNetUnfolderBase]: For 2312/2328 co-relation queries the response was YES. [2025-02-06 18:53:50,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6589 conditions, 2326 events. 1274/2326 cut-off events. For 2312/2328 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12459 event pairs, 824 based on Foata normal form. 34/2220 useless extension candidates. Maximal degree in co-relation 6356. Up to 1496 conditions per place. [2025-02-06 18:53:50,941 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 95 selfloop transitions, 31 changer transitions 32/174 dead transitions. [2025-02-06 18:53:50,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 174 transitions, 1443 flow [2025-02-06 18:53:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:53:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:53:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 258 transitions. [2025-02-06 18:53:50,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6246973365617433 [2025-02-06 18:53:50,942 INFO L175 Difference]: Start difference. First operand has 86 places, 121 transitions, 847 flow. Second operand 7 states and 258 transitions. [2025-02-06 18:53:50,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 174 transitions, 1443 flow [2025-02-06 18:53:50,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 174 transitions, 1390 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:53:50,950 INFO L231 Difference]: Finished difference. Result has 92 places, 115 transitions, 832 flow [2025-02-06 18:53:50,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=832, PETRI_PLACES=92, PETRI_TRANSITIONS=115} [2025-02-06 18:53:50,951 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2025-02-06 18:53:50,951 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 115 transitions, 832 flow [2025-02-06 18:53:50,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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 18:53:50,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:50,951 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:53:50,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:53:50,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:50,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1668445754, now seen corresponding path program 2 times [2025-02-06 18:53:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794918866] [2025-02-06 18:53:50,952 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:50,958 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:53:50,961 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:53:50,961 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:50,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:50,983 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 18:53:50,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:50,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794918866] [2025-02-06 18:53:50,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794918866] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:50,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607318022] [2025-02-06 18:53:50,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:50,997 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 18:53:51,002 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 18:53:51,044 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:53:51,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:53:51,050 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:51,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:53:51,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:51,072 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 18:53:51,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:51,092 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 18:53:51,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607318022] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:51,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:51,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:53:51,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413491721] [2025-02-06 18:53:51,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:51,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:51,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:51,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:51,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:51,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:51,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 115 transitions, 832 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:51,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:51,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:51,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:51,275 INFO L124 PetriNetUnfolderBase]: 1084/2010 cut-off events. [2025-02-06 18:53:51,276 INFO L125 PetriNetUnfolderBase]: For 2244/2260 co-relation queries the response was YES. [2025-02-06 18:53:51,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5801 conditions, 2010 events. 1084/2010 cut-off events. For 2244/2260 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11120 event pairs, 724 based on Foata normal form. 1/1873 useless extension candidates. Maximal degree in co-relation 5564. Up to 1551 conditions per place. [2025-02-06 18:53:51,285 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 86 selfloop transitions, 16 changer transitions 0/114 dead transitions. [2025-02-06 18:53:51,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 1026 flow [2025-02-06 18:53:51,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-06 18:53:51,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4279661016949153 [2025-02-06 18:53:51,286 INFO L175 Difference]: Start difference. First operand has 92 places, 115 transitions, 832 flow. Second operand 4 states and 101 transitions. [2025-02-06 18:53:51,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 1026 flow [2025-02-06 18:53:51,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 114 transitions, 913 flow, removed 9 selfloop flow, removed 11 redundant places. [2025-02-06 18:53:51,293 INFO L231 Difference]: Finished difference. Result has 79 places, 114 transitions, 741 flow [2025-02-06 18:53:51,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=741, PETRI_PLACES=79, PETRI_TRANSITIONS=114} [2025-02-06 18:53:51,294 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 22 predicate places. [2025-02-06 18:53:51,294 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 114 transitions, 741 flow [2025-02-06 18:53:51,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:53:51,294 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:51,294 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-06 18:53:51,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:53:51,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:51,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:51,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:51,496 INFO L85 PathProgramCache]: Analyzing trace with hash 693111004, now seen corresponding path program 1 times [2025-02-06 18:53:51,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:51,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245186394] [2025-02-06 18:53:51,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:51,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:51,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:53:51,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:53:51,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:51,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-06 18:53:51,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:51,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245186394] [2025-02-06 18:53:51,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245186394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:51,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:51,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:51,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387085993] [2025-02-06 18:53:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:51,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:51,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:51,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:51,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2025-02-06 18:53:51,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 114 transitions, 741 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 18:53:51,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:51,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2025-02-06 18:53:51,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:51,769 INFO L124 PetriNetUnfolderBase]: 1073/1954 cut-off events. [2025-02-06 18:53:51,770 INFO L125 PetriNetUnfolderBase]: For 1089/1103 co-relation queries the response was YES. [2025-02-06 18:53:51,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4946 conditions, 1954 events. 1073/1954 cut-off events. For 1089/1103 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10853 event pairs, 724 based on Foata normal form. 3/1740 useless extension candidates. Maximal degree in co-relation 4827. Up to 1496 conditions per place. [2025-02-06 18:53:51,777 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 66 selfloop transitions, 17 changer transitions 5/103 dead transitions. [2025-02-06 18:53:51,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 103 transitions, 815 flow [2025-02-06 18:53:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2025-02-06 18:53:51,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.614406779661017 [2025-02-06 18:53:51,779 INFO L175 Difference]: Start difference. First operand has 79 places, 114 transitions, 741 flow. Second operand 4 states and 145 transitions. [2025-02-06 18:53:51,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 103 transitions, 815 flow [2025-02-06 18:53:51,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 103 transitions, 758 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:51,783 INFO L231 Difference]: Finished difference. Result has 77 places, 98 transitions, 595 flow [2025-02-06 18:53:51,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=595, PETRI_PLACES=77, PETRI_TRANSITIONS=98} [2025-02-06 18:53:51,784 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 20 predicate places. [2025-02-06 18:53:51,784 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 98 transitions, 595 flow [2025-02-06 18:53:51,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 18:53:51,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:51,785 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:51,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:53:51,785 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:51,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1491705431, now seen corresponding path program 1 times [2025-02-06 18:53:51,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330145003] [2025-02-06 18:53:51,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:51,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:53:51,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:53:51,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:51,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 18:53:51,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330145003] [2025-02-06 18:53:51,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330145003] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925427644] [2025-02-06 18:53:51,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:51,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:51,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:51,931 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 18:53:51,932 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 18:53:51,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:53:51,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:53:51,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:51,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 18:53:51,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 18:53:52,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 18:53:52,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925427644] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:52,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:52,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-02-06 18:53:52,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341419969] [2025-02-06 18:53:52,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:52,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:53:52,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:52,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:53:52,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:53:52,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:52,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 98 transitions, 595 flow. Second operand has 19 states, 19 states have (on average 17.210526315789473) internal successors, (327), 19 states have internal predecessors, (327), 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 18:53:52,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:52,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:52,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:52,756 INFO L124 PetriNetUnfolderBase]: 2125/3785 cut-off events. [2025-02-06 18:53:52,756 INFO L125 PetriNetUnfolderBase]: For 2091/2186 co-relation queries the response was YES. [2025-02-06 18:53:52,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9495 conditions, 3785 events. 2125/3785 cut-off events. For 2091/2186 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 21210 event pairs, 1448 based on Foata normal form. 3/3365 useless extension candidates. Maximal degree in co-relation 9362. Up to 1475 conditions per place. [2025-02-06 18:53:52,772 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 62 selfloop transitions, 59 changer transitions 0/133 dead transitions. [2025-02-06 18:53:52,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 1006 flow [2025-02-06 18:53:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 248 transitions. [2025-02-06 18:53:52,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42033898305084744 [2025-02-06 18:53:52,775 INFO L175 Difference]: Start difference. First operand has 77 places, 98 transitions, 595 flow. Second operand 10 states and 248 transitions. [2025-02-06 18:53:52,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 1006 flow [2025-02-06 18:53:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 133 transitions, 884 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-06 18:53:52,780 INFO L231 Difference]: Finished difference. Result has 79 places, 107 transitions, 682 flow [2025-02-06 18:53:52,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=682, PETRI_PLACES=79, PETRI_TRANSITIONS=107} [2025-02-06 18:53:52,781 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 22 predicate places. [2025-02-06 18:53:52,781 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 107 transitions, 682 flow [2025-02-06 18:53:52,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.210526315789473) internal successors, (327), 19 states have internal predecessors, (327), 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 18:53:52,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:52,782 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1] [2025-02-06 18:53:52,788 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 18:53:52,982 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,SelfDestructingSolverStorable11 [2025-02-06 18:53:52,983 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:52,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1700539652, now seen corresponding path program 2 times [2025-02-06 18:53:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:52,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823664850] [2025-02-06 18:53:52,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:52,991 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-06 18:53:52,996 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 23 statements. [2025-02-06 18:53:52,996 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:52,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823664850] [2025-02-06 18:53:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823664850] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285371906] [2025-02-06 18:53:53,022 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:53,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:53,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:53,024 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 18:53:53,025 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 18:53:53,067 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-06 18:53:53,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 23 statements. [2025-02-06 18:53:53,075 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:53,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:53,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:53:53,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:53,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 18:53:53,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285371906] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:53,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:53,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-06 18:53:53,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422677901] [2025-02-06 18:53:53,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:53,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:53,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:53,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:53,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2025-02-06 18:53:53,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 107 transitions, 682 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 18:53:53,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:53,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2025-02-06 18:53:53,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:53,407 INFO L124 PetriNetUnfolderBase]: 2125/3827 cut-off events. [2025-02-06 18:53:53,407 INFO L125 PetriNetUnfolderBase]: For 2091/2119 co-relation queries the response was YES. [2025-02-06 18:53:53,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9551 conditions, 3827 events. 2125/3827 cut-off events. For 2091/2119 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 22031 event pairs, 1448 based on Foata normal form. 3/3393 useless extension candidates. Maximal degree in co-relation 9427. Up to 2915 conditions per place. [2025-02-06 18:53:53,421 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 40 selfloop transitions, 52 changer transitions 0/104 dead transitions. [2025-02-06 18:53:53,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 104 transitions, 836 flow [2025-02-06 18:53:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:53:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:53:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2025-02-06 18:53:53,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39322033898305087 [2025-02-06 18:53:53,422 INFO L175 Difference]: Start difference. First operand has 79 places, 107 transitions, 682 flow. Second operand 5 states and 116 transitions. [2025-02-06 18:53:53,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 104 transitions, 836 flow [2025-02-06 18:53:53,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 104 transitions, 722 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-02-06 18:53:53,425 INFO L231 Difference]: Finished difference. Result has 73 places, 104 transitions, 642 flow [2025-02-06 18:53:53,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=642, PETRI_PLACES=73, PETRI_TRANSITIONS=104} [2025-02-06 18:53:53,426 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2025-02-06 18:53:53,426 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 104 transitions, 642 flow [2025-02-06 18:53:53,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 18:53:53,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:53,426 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:53,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:53:53,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 18:53:53,630 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:53,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash -740473383, now seen corresponding path program 1 times [2025-02-06 18:53:53,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:53,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326024073] [2025-02-06 18:53:53,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:53,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:53,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 18:53:53,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 18:53:53,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:53,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:53,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326024073] [2025-02-06 18:53:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326024073] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399852541] [2025-02-06 18:53:53,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:53,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:53,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:53,714 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 18:53:53,716 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 18:53:53,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 18:53:53,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 18:53:53,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:53,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:53,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 18:53:53,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:53:53,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:53:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399852541] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:53,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:53,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2025-02-06 18:53:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447005141] [2025-02-06 18:53:53,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:53,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:53:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:53,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:53:53,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:53:54,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2025-02-06 18:53:54,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 104 transitions, 642 flow. Second operand has 19 states, 19 states have (on average 16.42105263157895) internal successors, (312), 19 states have internal predecessors, (312), 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 18:53:54,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:54,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2025-02-06 18:53:54,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:54,854 INFO L124 PetriNetUnfolderBase]: 2213/3658 cut-off events. [2025-02-06 18:53:54,854 INFO L125 PetriNetUnfolderBase]: For 1640/1754 co-relation queries the response was YES. [2025-02-06 18:53:54,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9363 conditions, 3658 events. 2213/3658 cut-off events. For 1640/1754 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 18800 event pairs, 536 based on Foata normal form. 62/3271 useless extension candidates. Maximal degree in co-relation 5591. Up to 825 conditions per place. [2025-02-06 18:53:54,870 INFO L140 encePairwiseOnDemand]: 41/59 looper letters, 158 selfloop transitions, 71 changer transitions 0/239 dead transitions. [2025-02-06 18:53:54,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 239 transitions, 1535 flow [2025-02-06 18:53:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:53:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:53:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 418 transitions. [2025-02-06 18:53:54,872 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4167497507477567 [2025-02-06 18:53:54,872 INFO L175 Difference]: Start difference. First operand has 73 places, 104 transitions, 642 flow. Second operand 17 states and 418 transitions. [2025-02-06 18:53:54,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 239 transitions, 1535 flow [2025-02-06 18:53:54,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 239 transitions, 1436 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:53:54,879 INFO L231 Difference]: Finished difference. Result has 85 places, 108 transitions, 703 flow [2025-02-06 18:53:54,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=703, PETRI_PLACES=85, PETRI_TRANSITIONS=108} [2025-02-06 18:53:54,879 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 28 predicate places. [2025-02-06 18:53:54,879 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 108 transitions, 703 flow [2025-02-06 18:53:54,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.42105263157895) internal successors, (312), 19 states have internal predecessors, (312), 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 18:53:54,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:54,880 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:54,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:53:55,084 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,SelfDestructingSolverStorable13 [2025-02-06 18:53:55,084 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:55,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:55,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1548291671, now seen corresponding path program 1 times [2025-02-06 18:53:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077789833] [2025-02-06 18:53:55,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:55,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:55,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:53:55,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:55,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:55,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:53:55,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:55,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077789833] [2025-02-06 18:53:55,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077789833] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:55,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021906483] [2025-02-06 18:53:55,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:55,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:55,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:55,209 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 18:53:55,214 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 18:53:55,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:53:55,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:55,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:55,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:55,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 18:53:55,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:53:55,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:53:55,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021906483] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:55,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:55,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 18 [2025-02-06 18:53:55,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465110856] [2025-02-06 18:53:55,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:55,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 18:53:55,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:55,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 18:53:55,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2025-02-06 18:53:55,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2025-02-06 18:53:55,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 108 transitions, 703 flow. Second operand has 20 states, 20 states have (on average 16.75) internal successors, (335), 20 states have internal predecessors, (335), 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 18:53:55,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:55,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2025-02-06 18:53:55,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:56,252 INFO L124 PetriNetUnfolderBase]: 2407/3899 cut-off events. [2025-02-06 18:53:56,253 INFO L125 PetriNetUnfolderBase]: For 3892/4005 co-relation queries the response was YES. [2025-02-06 18:53:56,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10812 conditions, 3899 events. 2407/3899 cut-off events. For 3892/4005 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 19295 event pairs, 1001 based on Foata normal form. 0/3398 useless extension candidates. Maximal degree in co-relation 6741. Up to 1348 conditions per place. [2025-02-06 18:53:56,264 INFO L140 encePairwiseOnDemand]: 41/59 looper letters, 123 selfloop transitions, 47 changer transitions 12/192 dead transitions. [2025-02-06 18:53:56,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 192 transitions, 1433 flow [2025-02-06 18:53:56,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:53:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:53:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 340 transitions. [2025-02-06 18:53:56,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.384180790960452 [2025-02-06 18:53:56,267 INFO L175 Difference]: Start difference. First operand has 85 places, 108 transitions, 703 flow. Second operand 15 states and 340 transitions. [2025-02-06 18:53:56,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 192 transitions, 1433 flow [2025-02-06 18:53:56,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 192 transitions, 1215 flow, removed 9 selfloop flow, removed 12 redundant places. [2025-02-06 18:53:56,271 INFO L231 Difference]: Finished difference. Result has 86 places, 112 transitions, 656 flow [2025-02-06 18:53:56,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=656, PETRI_PLACES=86, PETRI_TRANSITIONS=112} [2025-02-06 18:53:56,272 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2025-02-06 18:53:56,272 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 112 transitions, 656 flow [2025-02-06 18:53:56,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.75) internal successors, (335), 20 states have internal predecessors, (335), 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 18:53:56,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:56,273 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:56,279 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 18:53:56,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:56,477 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:56,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:56,479 INFO L85 PathProgramCache]: Analyzing trace with hash -849308608, now seen corresponding path program 1 times [2025-02-06 18:53:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:56,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584032398] [2025-02-06 18:53:56,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:56,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:56,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:53:56,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:56,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:56,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:56,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:56,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584032398] [2025-02-06 18:53:56,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584032398] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:56,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858673401] [2025-02-06 18:53:56,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:56,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:56,575 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 18:53:56,576 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 18:53:56,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:53:56,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:53:56,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:56,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:56,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:56,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:56,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:53:56,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858673401] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:56,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:53:56,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:53:56,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469372795] [2025-02-06 18:53:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:56,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:53:56,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:56,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:53:56,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:53:56,686 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:56,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 112 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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 18:53:56,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:56,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:56,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:57,040 INFO L124 PetriNetUnfolderBase]: 2758/4281 cut-off events. [2025-02-06 18:53:57,040 INFO L125 PetriNetUnfolderBase]: For 1996/2044 co-relation queries the response was YES. [2025-02-06 18:53:57,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11648 conditions, 4281 events. 2758/4281 cut-off events. For 1996/2044 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 20912 event pairs, 462 based on Foata normal form. 148/3745 useless extension candidates. Maximal degree in co-relation 7372. Up to 1147 conditions per place. [2025-02-06 18:53:57,052 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 200 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2025-02-06 18:53:57,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 215 transitions, 1438 flow [2025-02-06 18:53:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 217 transitions. [2025-02-06 18:53:57,057 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6129943502824858 [2025-02-06 18:53:57,058 INFO L175 Difference]: Start difference. First operand has 86 places, 112 transitions, 656 flow. Second operand 6 states and 217 transitions. [2025-02-06 18:53:57,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 215 transitions, 1438 flow [2025-02-06 18:53:57,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 215 transitions, 1383 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-06 18:53:57,063 INFO L231 Difference]: Finished difference. Result has 82 places, 111 transitions, 611 flow [2025-02-06 18:53:57,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=611, PETRI_PLACES=82, PETRI_TRANSITIONS=111} [2025-02-06 18:53:57,065 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2025-02-06 18:53:57,065 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 111 transitions, 611 flow [2025-02-06 18:53:57,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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 18:53:57,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:57,065 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:57,071 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 18:53:57,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 18:53:57,266 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:57,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash -558762456, now seen corresponding path program 1 times [2025-02-06 18:53:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:57,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602639196] [2025-02-06 18:53:57,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:57,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 18:53:57,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 18:53:57,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:57,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:57,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:57,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602639196] [2025-02-06 18:53:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602639196] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:57,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156118639] [2025-02-06 18:53:57,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:57,340 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 18:53:57,341 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 18:53:57,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 18:53:57,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 18:53:57,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:57,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:57,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:57,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:57,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:53:57,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156118639] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:57,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:53:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878218477] [2025-02-06 18:53:57,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:57,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:53:57,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:57,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:53:57,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:53:57,477 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:57,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 111 transitions, 611 flow. Second operand has 12 states, 12 states have (on average 24.416666666666668) internal successors, (293), 12 states have internal predecessors, (293), 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 18:53:57,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:57,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:57,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:58,221 INFO L124 PetriNetUnfolderBase]: 5404/8284 cut-off events. [2025-02-06 18:53:58,221 INFO L125 PetriNetUnfolderBase]: For 6289/6379 co-relation queries the response was YES. [2025-02-06 18:53:58,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24530 conditions, 8284 events. 5404/8284 cut-off events. For 6289/6379 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 42825 event pairs, 1384 based on Foata normal form. 444/7418 useless extension candidates. Maximal degree in co-relation 15689. Up to 3284 conditions per place. [2025-02-06 18:53:58,253 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 307 selfloop transitions, 13 changer transitions 0/328 dead transitions. [2025-02-06 18:53:58,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 328 transitions, 2049 flow [2025-02-06 18:53:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 364 transitions. [2025-02-06 18:53:58,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6169491525423729 [2025-02-06 18:53:58,255 INFO L175 Difference]: Start difference. First operand has 82 places, 111 transitions, 611 flow. Second operand 10 states and 364 transitions. [2025-02-06 18:53:58,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 328 transitions, 2049 flow [2025-02-06 18:53:58,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 328 transitions, 2003 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:58,265 INFO L231 Difference]: Finished difference. Result has 89 places, 120 transitions, 663 flow [2025-02-06 18:53:58,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=663, PETRI_PLACES=89, PETRI_TRANSITIONS=120} [2025-02-06 18:53:58,266 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 32 predicate places. [2025-02-06 18:53:58,266 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 120 transitions, 663 flow [2025-02-06 18:53:58,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.416666666666668) internal successors, (293), 12 states have internal predecessors, (293), 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 18:53:58,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:58,266 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:58,272 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 18:53:58,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:58,467 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:58,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:58,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1104306204, now seen corresponding path program 2 times [2025-02-06 18:53:58,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:58,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509739518] [2025-02-06 18:53:58,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:58,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:58,480 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-02-06 18:53:58,486 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 36 statements. [2025-02-06 18:53:58,487 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:58,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-06 18:53:58,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:58,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509739518] [2025-02-06 18:53:58,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509739518] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:58,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071317294] [2025-02-06 18:53:58,542 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:53:58,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:58,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:58,545 INFO L229 MonitoredProcess]: Starting monitored process 11 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 18:53:58,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 18:53:58,607 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-02-06 18:53:58,624 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 36 statements. [2025-02-06 18:53:58,624 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:53:58,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:58,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:53:58,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-06 18:53:58,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-06 18:53:58,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071317294] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:58,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:58,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 3 [2025-02-06 18:53:58,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103008183] [2025-02-06 18:53:58,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:58,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:53:58,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:58,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:53:58,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:53:58,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:58,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 120 transitions, 663 flow. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 18:53:58,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:58,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:58,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:59,243 INFO L124 PetriNetUnfolderBase]: 5037/7924 cut-off events. [2025-02-06 18:53:59,243 INFO L125 PetriNetUnfolderBase]: For 9846/9890 co-relation queries the response was YES. [2025-02-06 18:53:59,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22653 conditions, 7924 events. 5037/7924 cut-off events. For 9846/9890 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 41463 event pairs, 1988 based on Foata normal form. 148/7260 useless extension candidates. Maximal degree in co-relation 16318. Up to 4313 conditions per place. [2025-02-06 18:53:59,266 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 89 selfloop transitions, 11 changer transitions 37/145 dead transitions. [2025-02-06 18:53:59,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 145 transitions, 1020 flow [2025-02-06 18:53:59,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2025-02-06 18:53:59,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5635593220338984 [2025-02-06 18:53:59,267 INFO L175 Difference]: Start difference. First operand has 89 places, 120 transitions, 663 flow. Second operand 4 states and 133 transitions. [2025-02-06 18:53:59,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 145 transitions, 1020 flow [2025-02-06 18:53:59,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 145 transitions, 999 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-06 18:53:59,279 INFO L231 Difference]: Finished difference. Result has 85 places, 94 transitions, 526 flow [2025-02-06 18:53:59,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=526, PETRI_PLACES=85, PETRI_TRANSITIONS=94} [2025-02-06 18:53:59,280 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 28 predicate places. [2025-02-06 18:53:59,280 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 94 transitions, 526 flow [2025-02-06 18:53:59,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 18:53:59,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:59,280 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:59,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 18:53:59,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 18:53:59,480 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:53:59,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1428727847, now seen corresponding path program 1 times [2025-02-06 18:53:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978968110] [2025-02-06 18:53:59,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:59,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 18:53:59,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 18:53:59,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:59,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 18:53:59,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978968110] [2025-02-06 18:53:59,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978968110] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626565232] [2025-02-06 18:53:59,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:59,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:59,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:59,560 INFO L229 MonitoredProcess]: Starting monitored process 12 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 18:53:59,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 18:53:59,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 18:53:59,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 18:53:59,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:59,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:59,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:59,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:59,666 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 18:53:59,667 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 18:53:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626565232] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:59,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:53:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408279724] [2025-02-06 18:53:59,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:53:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:59,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:53:59,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:53:59,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:53:59,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 94 transitions, 526 flow. Second operand has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 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 18:53:59,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:59,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:53:59,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:54:00,304 INFO L124 PetriNetUnfolderBase]: 5077/7754 cut-off events. [2025-02-06 18:54:00,304 INFO L125 PetriNetUnfolderBase]: For 9959/9959 co-relation queries the response was YES. [2025-02-06 18:54:00,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22562 conditions, 7754 events. 5077/7754 cut-off events. For 9959/9959 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 41429 event pairs, 1111 based on Foata normal form. 438/7612 useless extension candidates. Maximal degree in co-relation 22361. Up to 2327 conditions per place. [2025-02-06 18:54:00,341 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 300 selfloop transitions, 9 changer transitions 0/316 dead transitions. [2025-02-06 18:54:00,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 316 transitions, 2176 flow [2025-02-06 18:54:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:54:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:54:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 366 transitions. [2025-02-06 18:54:00,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6203389830508474 [2025-02-06 18:54:00,343 INFO L175 Difference]: Start difference. First operand has 85 places, 94 transitions, 526 flow. Second operand 10 states and 366 transitions. [2025-02-06 18:54:00,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 316 transitions, 2176 flow [2025-02-06 18:54:00,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 316 transitions, 1953 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:54:00,353 INFO L231 Difference]: Finished difference. Result has 78 places, 100 transitions, 545 flow [2025-02-06 18:54:00,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=545, PETRI_PLACES=78, PETRI_TRANSITIONS=100} [2025-02-06 18:54:00,354 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2025-02-06 18:54:00,354 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 100 transitions, 545 flow [2025-02-06 18:54:00,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 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 18:54:00,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:54:00,354 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:54:00,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 18:54:00,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:54:00,559 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:54:00,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:54:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1505322748, now seen corresponding path program 2 times [2025-02-06 18:54:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:54:00,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864393435] [2025-02-06 18:54:00,560 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:54:00,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:54:00,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-02-06 18:54:00,576 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 46 statements. [2025-02-06 18:54:00,576 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:54:00,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:54:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 18:54:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:54:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864393435] [2025-02-06 18:54:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864393435] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:54:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978729460] [2025-02-06 18:54:00,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:54:00,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:54:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:54:00,614 INFO L229 MonitoredProcess]: Starting monitored process 13 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 18:54:00,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 18:54:00,685 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-02-06 18:54:00,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 46 statements. [2025-02-06 18:54:00,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:54:00,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:54:00,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:54:00,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:54:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 18:54:00,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:54:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-02-06 18:54:00,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978729460] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:54:00,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:54:00,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:54:00,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369994805] [2025-02-06 18:54:00,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:54:00,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:54:00,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:54:00,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:54:00,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:54:00,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2025-02-06 18:54:00,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 100 transitions, 545 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 18:54:00,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:54:00,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2025-02-06 18:54:00,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:54:01,223 INFO L124 PetriNetUnfolderBase]: 4655/7353 cut-off events. [2025-02-06 18:54:01,224 INFO L125 PetriNetUnfolderBase]: For 10217/10217 co-relation queries the response was YES. [2025-02-06 18:54:01,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21120 conditions, 7353 events. 4655/7353 cut-off events. For 10217/10217 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 40111 event pairs, 1739 based on Foata normal form. 146/6305 useless extension candidates. Maximal degree in co-relation 20873. Up to 3462 conditions per place. [2025-02-06 18:54:01,238 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2025-02-06 18:54:01,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 126 transitions, 876 flow [2025-02-06 18:54:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:54:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:54:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-06 18:54:01,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2025-02-06 18:54:01,239 INFO L175 Difference]: Start difference. First operand has 78 places, 100 transitions, 545 flow. Second operand 4 states and 132 transitions. [2025-02-06 18:54:01,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 126 transitions, 876 flow [2025-02-06 18:54:01,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 126 transitions, 856 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-06 18:54:01,253 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-02-06 18:54:01,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-02-06 18:54:01,253 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2025-02-06 18:54:01,253 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-02-06 18:54:01,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 18:54:01,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2025-02-06 18:54:01,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2025-02-06 18:54:01,258 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2025-02-06 18:54:01,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-06 18:54:01,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:54:01,459 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:54:01,463 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:54:01,463 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:54:01,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:54:01 BasicIcfg [2025-02-06 18:54:01,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:54:01,471 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:54:01,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:54:01,471 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:54:01,472 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:46" (3/4) ... [2025-02-06 18:54:01,473 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:54:01,474 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:54:01,475 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:54:01,475 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-06 18:54:01,483 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 150 nodes and edges [2025-02-06 18:54:01,485 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2025-02-06 18:54:01,485 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-02-06 18:54:01,486 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 18:54:01,558 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:54:01,558 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:54:01,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:54:01,559 INFO L158 Benchmark]: Toolchain (without parser) took 15946.05ms. Allocated memory was 167.8MB in the beginning and 520.1MB in the end (delta: 352.3MB). Free memory was 134.1MB in the beginning and 313.8MB in the end (delta: -179.7MB). Peak memory consumption was 168.5MB. Max. memory is 16.1GB. [2025-02-06 18:54:01,560 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:54:01,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.28ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 122.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:54:01,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.76ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:54:01,562 INFO L158 Benchmark]: Boogie Preprocessor took 39.49ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:54:01,562 INFO L158 Benchmark]: IcfgBuilder took 675.48ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 56.7MB in the end (delta: 61.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 18:54:01,562 INFO L158 Benchmark]: TraceAbstraction took 14904.72ms. Allocated memory was 167.8MB in the beginning and 520.1MB in the end (delta: 352.3MB). Free memory was 56.3MB in the beginning and 321.4MB in the end (delta: -265.1MB). Peak memory consumption was 319.5MB. Max. memory is 16.1GB. [2025-02-06 18:54:01,562 INFO L158 Benchmark]: Witness Printer took 87.34ms. Allocated memory is still 520.1MB. Free memory was 321.4MB in the beginning and 313.8MB in the end (delta: 7.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:54:01,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.28ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 122.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.76ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.49ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 117.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 675.48ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 56.7MB in the end (delta: 61.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14904.72ms. Allocated memory was 167.8MB in the beginning and 520.1MB in the end (delta: 352.3MB). Free memory was 56.3MB in the beginning and 321.4MB in the end (delta: -265.1MB). Peak memory consumption was 319.5MB. Max. memory is 16.1GB. * Witness Printer took 87.34ms. Allocated memory is still 520.1MB. Free memory was 321.4MB in the beginning and 313.8MB in the end (delta: 7.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: 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: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 77 locations, 23 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: 14.8s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1924 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1794 mSDsluCounter, 1626 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1568 mSDsCounter, 395 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5851 IncrementalHoareTripleChecker+Invalid, 6246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 395 mSolverCounterUnsat, 58 mSDtfsCounter, 5851 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 670 GetRequests, 480 SyntacticMatches, 6 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=847occurred in iteration=8, InterpolantAutomatonStates: 141, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 681 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 2395 SizeOfPredicates, 44 NumberOfNonLiveVariables, 2041 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 42 InterpolantComputations, 10 PerfectInterpolantSequences, 581/719 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:54:01,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE