./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-mts.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-mts.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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:53:34,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:53:34,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:53:34,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:53:34,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:53:34,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:53:34,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:53:34,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:53:34,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:53:34,968 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:53:34,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:53:34,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:53:34,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:53:34,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:53:34,969 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:53:34,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:34,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:53:34,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:53:34,970 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 -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2025-02-06 18:53:35,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:53:35,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:53:35,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:53:35,200 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:53:35,200 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:53:35,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2025-02-06 18:53:37,054 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/82ffa8042/e1f8588839be4675bd6ae23f77eb91dd/FLAG057a4e6d8 [2025-02-06 18:53:37,285 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:53:37,292 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2025-02-06 18:53:37,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/82ffa8042/e1f8588839be4675bd6ae23f77eb91dd/FLAG057a4e6d8 [2025-02-06 18:53:37,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/82ffa8042/e1f8588839be4675bd6ae23f77eb91dd [2025-02-06 18:53:37,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:53:37,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:53:37,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:37,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:53:37,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:53:37,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180261d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37, skipping insertion in model container [2025-02-06 18:53:37,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:53:37,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:37,477 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:53:37,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:53:37,509 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:53:37,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37 WrapperNode [2025-02-06 18:53:37,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:53:37,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:37,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:53:37,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:53:37,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,555 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 284 [2025-02-06 18:53:37,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:53:37,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:53:37,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:53:37,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:53:37,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,575 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-06 18:53:37,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,585 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:53:37,597 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:53:37,597 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:53:37,597 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:53:37,598 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (1/1) ... [2025-02-06 18:53:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:53:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:37,622 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 18:53:37,626 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 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:53:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:53:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:53:37,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:53:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:53:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:53:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:53:37,648 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 18:53:37,723 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:53:37,724 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:53:38,082 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:53:38,082 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:53:38,446 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:53:38,446 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:53:38,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:38 BoogieIcfgContainer [2025-02-06 18:53:38,447 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:53:38,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:53:38,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:53:38,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:53:38,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:53:37" (1/3) ... [2025-02-06 18:53:38,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c50e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:38, skipping insertion in model container [2025-02-06 18:53:38,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:53:37" (2/3) ... [2025-02-06 18:53:38,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c50e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:53:38, skipping insertion in model container [2025-02-06 18:53:38,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:53:38" (3/3) ... [2025-02-06 18:53:38,453 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2025-02-06 18:53:38,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:53:38,466 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-mts.wvr.c that has 4 procedures, 107 locations, 1 initial locations, 4 loop locations, and 42 error locations. [2025-02-06 18:53:38,466 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:53:38,608 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:53:38,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 117 transitions, 255 flow [2025-02-06 18:53:38,683 INFO L124 PetriNetUnfolderBase]: 11/114 cut-off events. [2025-02-06 18:53:38,685 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:53:38,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 11/114 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 474 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2025-02-06 18:53:38,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 117 transitions, 255 flow [2025-02-06 18:53:38,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 111 transitions, 240 flow [2025-02-06 18:53:38,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:53:38,713 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;@b21f588, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:53:38,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-02-06 18:53:38,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:53:38,718 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:53:38,718 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:53:38,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:38,719 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:53:38,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:38,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash 883482, now seen corresponding path program 1 times [2025-02-06 18:53:38,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:38,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748605099] [2025-02-06 18:53:38,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:38,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:38,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:53:38,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:53:38,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:38,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:38,916 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 18:53:38,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:38,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748605099] [2025-02-06 18:53:38,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748605099] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:38,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:38,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:53:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113119964] [2025-02-06 18:53:38,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:38,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:38,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:38,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:38,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:38,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2025-02-06 18:53:38,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 18:53:38,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:38,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2025-02-06 18:53:38,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:40,533 INFO L124 PetriNetUnfolderBase]: 9525/16709 cut-off events. [2025-02-06 18:53:40,534 INFO L125 PetriNetUnfolderBase]: For 482/482 co-relation queries the response was YES. [2025-02-06 18:53:40,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29916 conditions, 16709 events. 9525/16709 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 138862 event pairs, 7074 based on Foata normal form. 1/12363 useless extension candidates. Maximal degree in co-relation 28866. Up to 12796 conditions per place. [2025-02-06 18:53:40,662 INFO L140 encePairwiseOnDemand]: 103/117 looper letters, 50 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2025-02-06 18:53:40,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 106 transitions, 338 flow [2025-02-06 18:53:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:40,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2025-02-06 18:53:40,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6068376068376068 [2025-02-06 18:53:40,674 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 240 flow. Second operand 4 states and 284 transitions. [2025-02-06 18:53:40,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 106 transitions, 338 flow [2025-02-06 18:53:40,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 326 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 18:53:40,683 INFO L231 Difference]: Finished difference. Result has 102 places, 106 transitions, 241 flow [2025-02-06 18:53:40,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=102, PETRI_TRANSITIONS=106} [2025-02-06 18:53:40,687 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2025-02-06 18:53:40,688 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 106 transitions, 241 flow [2025-02-06 18:53:40,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 18:53:40,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:40,688 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:53:40,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:53:40,688 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:40,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:40,689 INFO L85 PathProgramCache]: Analyzing trace with hash 550763194, now seen corresponding path program 1 times [2025-02-06 18:53:40,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:40,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470836995] [2025-02-06 18:53:40,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:40,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:40,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:40,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:40,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:40,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:40,819 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 18:53:40,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470836995] [2025-02-06 18:53:40,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470836995] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436316361] [2025-02-06 18:53:40,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:40,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:40,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:40,821 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 18:53:40,823 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 18:53:40,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:53:40,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:53:40,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:40,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:40,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:40,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:40,944 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 18:53:40,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:53:40,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436316361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:40,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:53:40,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:53:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228467998] [2025-02-06 18:53:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:40,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:53:40,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:40,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:53:40,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:53:40,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2025-02-06 18:53:40,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 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 18:53:40,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:40,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2025-02-06 18:53:40,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:42,072 INFO L124 PetriNetUnfolderBase]: 9525/16708 cut-off events. [2025-02-06 18:53:42,073 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-02-06 18:53:42,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29657 conditions, 16708 events. 9525/16708 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 138537 event pairs, 7074 based on Foata normal form. 1/12363 useless extension candidates. Maximal degree in co-relation 29630. Up to 12791 conditions per place. [2025-02-06 18:53:42,183 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 46 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2025-02-06 18:53:42,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 343 flow [2025-02-06 18:53:42,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:53:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:53:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2025-02-06 18:53:42,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5470085470085471 [2025-02-06 18:53:42,188 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 241 flow. Second operand 6 states and 384 transitions. [2025-02-06 18:53:42,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 343 flow [2025-02-06 18:53:42,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:53:42,192 INFO L231 Difference]: Finished difference. Result has 105 places, 105 transitions, 248 flow [2025-02-06 18:53:42,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=105, PETRI_TRANSITIONS=105} [2025-02-06 18:53:42,193 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2025-02-06 18:53:42,193 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 105 transitions, 248 flow [2025-02-06 18:53:42,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 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 18:53:42,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:42,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:42,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:42,394 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 18:53:42,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:42,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 97951480, now seen corresponding path program 1 times [2025-02-06 18:53:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:42,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589824529] [2025-02-06 18:53:42,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:42,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:42,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:42,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:42,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:42,490 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 18:53:42,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589824529] [2025-02-06 18:53:42,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589824529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:42,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:42,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:42,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859343567] [2025-02-06 18:53:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:42,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:42,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:42,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:42,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:42,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 117 [2025-02-06 18:53:42,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:53:42,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:42,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 117 [2025-02-06 18:53:42,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:44,179 INFO L124 PetriNetUnfolderBase]: 14819/25469 cut-off events. [2025-02-06 18:53:44,180 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2025-02-06 18:53:44,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45680 conditions, 25469 events. 14819/25469 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 221676 event pairs, 6492 based on Foata normal form. 532/19088 useless extension candidates. Maximal degree in co-relation 45650. Up to 11850 conditions per place. [2025-02-06 18:53:44,293 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 112 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2025-02-06 18:53:44,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 164 transitions, 604 flow [2025-02-06 18:53:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:53:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:53:44,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2025-02-06 18:53:44,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2025-02-06 18:53:44,295 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 248 flow. Second operand 4 states and 321 transitions. [2025-02-06 18:53:44,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 164 transitions, 604 flow [2025-02-06 18:53:44,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 164 transitions, 582 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-06 18:53:44,298 INFO L231 Difference]: Finished difference. Result has 105 places, 107 transitions, 260 flow [2025-02-06 18:53:44,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=105, PETRI_TRANSITIONS=107} [2025-02-06 18:53:44,298 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2025-02-06 18:53:44,299 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 107 transitions, 260 flow [2025-02-06 18:53:44,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:53:44,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:44,299 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:53:44,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:53:44,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:44,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash -106209412, now seen corresponding path program 1 times [2025-02-06 18:53:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:44,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001421141] [2025-02-06 18:53:44,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:44,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:44,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:44,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:44,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:44,375 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 18:53:44,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:44,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001421141] [2025-02-06 18:53:44,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001421141] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:44,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719779861] [2025-02-06 18:53:44,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:44,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:44,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:44,378 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 18:53:44,381 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 18:53:44,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:53:44,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:53:44,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:44,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:44,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:53:44,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:44,471 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 18:53:44,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:44,501 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 18:53:44,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719779861] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:44,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:44,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:53:44,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135923609] [2025-02-06 18:53:44,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:44,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:53:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:44,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:53:44,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:53:44,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 117 [2025-02-06 18:53:44,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 107 transitions, 260 flow. Second operand has 12 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 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 18:53:44,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:44,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 117 [2025-02-06 18:53:44,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:45,650 INFO L124 PetriNetUnfolderBase]: 10964/20084 cut-off events. [2025-02-06 18:53:45,650 INFO L125 PetriNetUnfolderBase]: For 3266/3778 co-relation queries the response was YES. [2025-02-06 18:53:45,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37562 conditions, 20084 events. 10964/20084 cut-off events. For 3266/3778 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 180898 event pairs, 8278 based on Foata normal form. 260/15404 useless extension candidates. Maximal degree in co-relation 37510. Up to 14766 conditions per place. [2025-02-06 18:53:45,755 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 51 selfloop transitions, 13 changer transitions 0/116 dead transitions. [2025-02-06 18:53:45,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 418 flow [2025-02-06 18:53:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 615 transitions. [2025-02-06 18:53:45,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5256410256410257 [2025-02-06 18:53:45,761 INFO L175 Difference]: Start difference. First operand has 105 places, 107 transitions, 260 flow. Second operand 10 states and 615 transitions. [2025-02-06 18:53:45,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 418 flow [2025-02-06 18:53:45,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 116 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:53:45,785 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 334 flow [2025-02-06 18:53:45,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=334, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2025-02-06 18:53:45,786 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2025-02-06 18:53:45,786 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 334 flow [2025-02-06 18:53:45,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 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 18:53:45,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:45,786 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:45,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:53:45,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:45,987 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:45,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:45,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1258470555, now seen corresponding path program 1 times [2025-02-06 18:53:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:45,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602693012] [2025-02-06 18:53:45,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:45,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:45,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:53:46,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:53:46,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:46,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:46,081 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 18:53:46,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602693012] [2025-02-06 18:53:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602693012] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:46,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:53:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202345075] [2025-02-06 18:53:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:46,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:53:46,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:46,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:53:46,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:53:46,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 117 [2025-02-06 18:53:46,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 18:53:46,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:46,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 117 [2025-02-06 18:53:46,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:47,559 INFO L124 PetriNetUnfolderBase]: 10963/20083 cut-off events. [2025-02-06 18:53:47,559 INFO L125 PetriNetUnfolderBase]: For 3282/3794 co-relation queries the response was YES. [2025-02-06 18:53:47,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37584 conditions, 20083 events. 10963/20083 cut-off events. For 3282/3794 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 180788 event pairs, 8278 based on Foata normal form. 258/15404 useless extension candidates. Maximal degree in co-relation 37547. Up to 14770 conditions per place. [2025-02-06 18:53:47,787 INFO L140 encePairwiseOnDemand]: 114/117 looper letters, 60 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2025-02-06 18:53:47,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 115 transitions, 454 flow [2025-02-06 18:53:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:53:47,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:53:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-02-06 18:53:47,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6353276353276354 [2025-02-06 18:53:47,789 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 334 flow. Second operand 3 states and 223 transitions. [2025-02-06 18:53:47,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 115 transitions, 454 flow [2025-02-06 18:53:47,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 115 transitions, 444 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:47,812 INFO L231 Difference]: Finished difference. Result has 117 places, 115 transitions, 324 flow [2025-02-06 18:53:47,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=115} [2025-02-06 18:53:47,813 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2025-02-06 18:53:47,813 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 115 transitions, 324 flow [2025-02-06 18:53:47,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 18:53:47,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:47,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:47,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:53:47,813 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:47,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:47,814 INFO L85 PathProgramCache]: Analyzing trace with hash -394950715, now seen corresponding path program 1 times [2025-02-06 18:53:47,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594827011] [2025-02-06 18:53:47,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:47,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:53:47,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:53:47,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:47,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:48,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594827011] [2025-02-06 18:53:48,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594827011] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759962738] [2025-02-06 18:53:48,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:48,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:48,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:48,042 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 18:53:48,043 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 18:53:48,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:53:48,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:53:48,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:48,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:48,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 18:53:48,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:48,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 18:53:48,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-02-06 18:53:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:48,185 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:48,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2025-02-06 18:53:48,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2025-02-06 18:53:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:48,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759962738] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:48,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:48,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:53:48,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016133732] [2025-02-06 18:53:48,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:48,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 18:53:48,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:48,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 18:53:48,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:53:48,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 117 [2025-02-06 18:53:48,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 324 flow. Second operand has 13 states, 13 states have (on average 55.38461538461539) internal successors, (720), 13 states have internal predecessors, (720), 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 18:53:48,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:48,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 117 [2025-02-06 18:53:48,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:51,115 INFO L124 PetriNetUnfolderBase]: 23143/44468 cut-off events. [2025-02-06 18:53:51,115 INFO L125 PetriNetUnfolderBase]: For 6779/6791 co-relation queries the response was YES. [2025-02-06 18:53:51,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83801 conditions, 44468 events. 23143/44468 cut-off events. For 6779/6791 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 443564 event pairs, 6600 based on Foata normal form. 12/34325 useless extension candidates. Maximal degree in co-relation 83778. Up to 12228 conditions per place. [2025-02-06 18:53:51,332 INFO L140 encePairwiseOnDemand]: 104/117 looper letters, 176 selfloop transitions, 18 changer transitions 0/245 dead transitions. [2025-02-06 18:53:51,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 245 transitions, 1002 flow [2025-02-06 18:53:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 724 transitions. [2025-02-06 18:53:51,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6188034188034188 [2025-02-06 18:53:51,334 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 324 flow. Second operand 10 states and 724 transitions. [2025-02-06 18:53:51,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 245 transitions, 1002 flow [2025-02-06 18:53:51,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 245 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:53:51,479 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 427 flow [2025-02-06 18:53:51,479 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=427, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2025-02-06 18:53:51,479 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 16 predicate places. [2025-02-06 18:53:51,480 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 427 flow [2025-02-06 18:53:51,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 55.38461538461539) internal successors, (720), 13 states have internal predecessors, (720), 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 18:53:51,480 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:51,480 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:51,486 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 18:53:51,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:51,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:51,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:51,681 INFO L85 PathProgramCache]: Analyzing trace with hash 641399836, now seen corresponding path program 1 times [2025-02-06 18:53:51,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:51,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211589889] [2025-02-06 18:53:51,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:51,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:51,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:53:51,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:53:51,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:51,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:51,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:51,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211589889] [2025-02-06 18:53:51,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211589889] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:53:51,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858868138] [2025-02-06 18:53:51,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:53:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:53:51,882 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 18:53:51,884 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 18:53:51,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:53:51,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:53:51,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:51,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:51,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 18:53:51,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:53:51,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 18:53:52,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 18:53:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:52,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:53:52,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2025-02-06 18:53:52,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2025-02-06 18:53:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:53:52,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858868138] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:53:52,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:53:52,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:53:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222175564] [2025-02-06 18:53:52,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:53:52,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 18:53:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:52,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 18:53:52,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:53:52,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 117 [2025-02-06 18:53:52,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 427 flow. Second operand has 13 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 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 18:53:52,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:52,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 117 [2025-02-06 18:53:52,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:53:56,550 INFO L124 PetriNetUnfolderBase]: 27767/49283 cut-off events. [2025-02-06 18:53:56,551 INFO L125 PetriNetUnfolderBase]: For 21540/21697 co-relation queries the response was YES. [2025-02-06 18:53:56,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101909 conditions, 49283 events. 27767/49283 cut-off events. For 21540/21697 co-relation queries the response was YES. Maximal size of possible extension queue 1623. Compared 457297 event pairs, 7715 based on Foata normal form. 423/38443 useless extension candidates. Maximal degree in co-relation 101873. Up to 15186 conditions per place. [2025-02-06 18:53:56,821 INFO L140 encePairwiseOnDemand]: 104/117 looper letters, 180 selfloop transitions, 18 changer transitions 0/246 dead transitions. [2025-02-06 18:53:56,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 246 transitions, 1083 flow [2025-02-06 18:53:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:53:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:53:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2025-02-06 18:53:56,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6017094017094017 [2025-02-06 18:53:56,823 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 427 flow. Second operand 10 states and 704 transitions. [2025-02-06 18:53:56,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 246 transitions, 1083 flow [2025-02-06 18:53:56,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 246 transitions, 1071 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:53:56,880 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 477 flow [2025-02-06 18:53:56,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=477, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2025-02-06 18:53:56,881 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 23 predicate places. [2025-02-06 18:53:56,882 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 477 flow [2025-02-06 18:53:56,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 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 18:53:56,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:53:56,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:53:56,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:53:57,083 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,SelfDestructingSolverStorable6 [2025-02-06 18:53:57,083 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:53:57,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:53:57,083 INFO L85 PathProgramCache]: Analyzing trace with hash 294124128, now seen corresponding path program 1 times [2025-02-06 18:53:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:53:57,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561117941] [2025-02-06 18:53:57,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:53:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:53:57,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:53:57,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:53:57,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:53:57,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:53:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:53:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:53:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561117941] [2025-02-06 18:53:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561117941] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:53:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:53:57,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:53:57,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741614480] [2025-02-06 18:53:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:53:57,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:53:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:53:57,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:53:57,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:53:57,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 117 [2025-02-06 18:53:57,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 477 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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 18:53:57,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:53:57,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 117 [2025-02-06 18:53:57,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:54:01,962 INFO L124 PetriNetUnfolderBase]: 33435/61029 cut-off events. [2025-02-06 18:54:01,962 INFO L125 PetriNetUnfolderBase]: For 47569/48379 co-relation queries the response was YES. [2025-02-06 18:54:02,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133028 conditions, 61029 events. 33435/61029 cut-off events. For 47569/48379 co-relation queries the response was YES. Maximal size of possible extension queue 1870. Compared 609761 event pairs, 14798 based on Foata normal form. 1908/48036 useless extension candidates. Maximal degree in co-relation 132990. Up to 26465 conditions per place. [2025-02-06 18:54:02,317 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 148 selfloop transitions, 5 changer transitions 0/203 dead transitions. [2025-02-06 18:54:02,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 203 transitions, 1135 flow [2025-02-06 18:54:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:54:02,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:54:02,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2025-02-06 18:54:02,318 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6816239316239316 [2025-02-06 18:54:02,318 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 477 flow. Second operand 4 states and 319 transitions. [2025-02-06 18:54:02,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 203 transitions, 1135 flow [2025-02-06 18:54:02,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 203 transitions, 1087 flow, removed 1 selfloop flow, removed 7 redundant places. [2025-02-06 18:54:02,518 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 487 flow [2025-02-06 18:54:02,518 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=487, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2025-02-06 18:54:02,519 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 21 predicate places. [2025-02-06 18:54:02,519 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 487 flow [2025-02-06 18:54:02,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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 18:54:02,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:54:02,519 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:54:02,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:54:02,519 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:54:02,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:54:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1591440696, now seen corresponding path program 1 times [2025-02-06 18:54:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:54:02,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369252213] [2025-02-06 18:54:02,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:54:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:54:02,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:54:02,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:54:02,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:54:02,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:54:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:54:02,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:54:02,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369252213] [2025-02-06 18:54:02,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369252213] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:54:02,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:54:02,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:54:02,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82866852] [2025-02-06 18:54:02,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:54:02,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:54:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:54:02,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:54:02,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:54:02,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 117 [2025-02-06 18:54:02,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 487 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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 18:54:02,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:54:02,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 117 [2025-02-06 18:54:02,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:54:06,473 INFO L124 PetriNetUnfolderBase]: 30495/56173 cut-off events. [2025-02-06 18:54:06,474 INFO L125 PetriNetUnfolderBase]: For 39022/40448 co-relation queries the response was YES. [2025-02-06 18:54:06,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124961 conditions, 56173 events. 30495/56173 cut-off events. For 39022/40448 co-relation queries the response was YES. Maximal size of possible extension queue 1779. Compared 559385 event pairs, 14084 based on Foata normal form. 1350/45298 useless extension candidates. Maximal degree in co-relation 124925. Up to 24978 conditions per place. [2025-02-06 18:54:06,834 INFO L140 encePairwiseOnDemand]: 112/117 looper letters, 131 selfloop transitions, 8 changer transitions 0/187 dead transitions. [2025-02-06 18:54:06,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 187 transitions, 910 flow [2025-02-06 18:54:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:54:06,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:54:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2025-02-06 18:54:06,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6794871794871795 [2025-02-06 18:54:06,836 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 487 flow. Second operand 4 states and 318 transitions. [2025-02-06 18:54:06,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 187 transitions, 910 flow [2025-02-06 18:54:07,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 905 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:54:07,191 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 481 flow [2025-02-06 18:54:07,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=481, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2025-02-06 18:54:07,191 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 23 predicate places. [2025-02-06 18:54:07,191 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 481 flow [2025-02-06 18:54:07,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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 18:54:07,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:54:07,192 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:54:07,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:54:07,192 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2025-02-06 18:54:07,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:54:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1591441689, now seen corresponding path program 1 times [2025-02-06 18:54:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:54:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688064177] [2025-02-06 18:54:07,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:54:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:54:07,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:54:07,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:54:07,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:54:07,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:54:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:54:07,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:54:07,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688064177] [2025-02-06 18:54:07,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688064177] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:54:07,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:54:07,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:54:07,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259834112] [2025-02-06 18:54:07,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:54:07,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:54:07,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:54:07,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:54:07,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:54:07,304 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 117 [2025-02-06 18:54:07,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 481 flow. Second operand has 5 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 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 18:54:07,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:54:07,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 117 [2025-02-06 18:54:07,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand