./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-4.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 ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:52:06,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:52:06,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:52:06,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:52:06,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:52:06,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:52:06,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:52:06,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:52:06,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:52:06,386 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:52:06,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:52:06,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:52:06,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:52:06,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:52:06,388 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:52:06,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:52:06,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:52:06,388 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:52:06,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:52:06,389 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:52:06,390 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:52:06,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:52:06,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:52:06,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:52:06,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:52:06,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:52:06,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:52:06,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:52:06,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:52:06,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:52:06,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:52:06,392 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 -> ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 [2025-01-10 06:52:06,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:52:06,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:52:06,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:52:06,651 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:52:06,652 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:52:06,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-01-10 06:52:07,841 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31340b488/5de10ead1ec7436d811fbf892ed9b99e/FLAGdc47df153 [2025-01-10 06:52:08,129 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:52:08,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-01-10 06:52:08,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31340b488/5de10ead1ec7436d811fbf892ed9b99e/FLAGdc47df153 [2025-01-10 06:52:08,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31340b488/5de10ead1ec7436d811fbf892ed9b99e [2025-01-10 06:52:08,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:52:08,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:52:08,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:52:08,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:52:08,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:52:08,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1abd54ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08, skipping insertion in model container [2025-01-10 06:52:08,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:52:08,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:52:08,592 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:52:08,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:52:08,638 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:52:08,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08 WrapperNode [2025-01-10 06:52:08,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:52:08,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:52:08,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:52:08,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:52:08,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,672 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 190 [2025-01-10 06:52:08,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:52:08,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:52:08,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:52:08,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:52:08,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:52:08,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,718 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:52:08,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:52:08,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:52:08,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:52:08,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (1/1) ... [2025-01-10 06:52:08,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:52:08,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:52:08,764 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) [2025-01-10 06:52:08,767 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 [2025-01-10 06:52:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:52:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 06:52:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 06:52:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 06:52:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 06:52:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-10 06:52:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-10 06:52:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-10 06:52:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-10 06:52:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:52:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:52:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:52:08,789 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:52:08,879 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:52:08,881 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:52:09,121 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:52:09,122 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:52:09,249 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:52:09,249 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:52:09,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:52:09 BoogieIcfgContainer [2025-01-10 06:52:09,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:52:09,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:52:09,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:52:09,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:52:09,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:52:08" (1/3) ... [2025-01-10 06:52:09,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7969e177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:52:09, skipping insertion in model container [2025-01-10 06:52:09,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:52:08" (2/3) ... [2025-01-10 06:52:09,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7969e177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:52:09, skipping insertion in model container [2025-01-10 06:52:09,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:52:09" (3/3) ... [2025-01-10 06:52:09,261 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2025-01-10 06:52:09,274 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:52:09,275 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-4.wvr.c that has 5 procedures, 71 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2025-01-10 06:52:09,275 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:52:09,329 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 06:52:09,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 73 transitions, 174 flow [2025-01-10 06:52:09,418 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2025-01-10 06:52:09,422 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-10 06:52:09,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 3/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 182 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-01-10 06:52:09,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 73 transitions, 174 flow [2025-01-10 06:52:09,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 155 flow [2025-01-10 06:52:09,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:52:09,446 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;@40ade6cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:52:09,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-01-10 06:52:09,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:52:09,451 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-01-10 06:52:09,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:52:09,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:09,452 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:09,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:09,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash 473808465, now seen corresponding path program 1 times [2025-01-10 06:52:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029760023] [2025-01-10 06:52:09,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:09,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:52:09,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:52:09,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:09,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:09,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:09,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029760023] [2025-01-10 06:52:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029760023] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:09,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:09,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:52:09,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658458546] [2025-01-10 06:52:09,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:09,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:52:09,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:09,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:52:09,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:52:09,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:09,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-10 06:52:09,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:09,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:09,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:12,822 INFO L124 PetriNetUnfolderBase]: 30142/42635 cut-off events. [2025-01-10 06:52:12,823 INFO L125 PetriNetUnfolderBase]: For 1739/1739 co-relation queries the response was YES. [2025-01-10 06:52:13,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83311 conditions, 42635 events. 30142/42635 cut-off events. For 1739/1739 co-relation queries the response was YES. Maximal size of possible extension queue 2285. Compared 310024 event pairs, 28966 based on Foata normal form. 0/26711 useless extension candidates. Maximal degree in co-relation 78608. Up to 38913 conditions per place. [2025-01-10 06:52:13,225 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 42 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2025-01-10 06:52:13,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 237 flow [2025-01-10 06:52:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:52:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:52:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2025-01-10 06:52:13,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5251141552511416 [2025-01-10 06:52:13,237 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 155 flow. Second operand 3 states and 115 transitions. [2025-01-10 06:52:13,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 237 flow [2025-01-10 06:52:13,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 224 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-01-10 06:52:13,386 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 140 flow [2025-01-10 06:52:13,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2025-01-10 06:52:13,390 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-01-10 06:52:13,390 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 140 flow [2025-01-10 06:52:13,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-10 06:52:13,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:13,391 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:13,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:52:13,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:13,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 473808466, now seen corresponding path program 1 times [2025-01-10 06:52:13,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:13,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809847442] [2025-01-10 06:52:13,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:13,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:13,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:52:13,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:52:13,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:13,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:13,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:13,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809847442] [2025-01-10 06:52:13,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809847442] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:13,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:13,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:52:13,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078375253] [2025-01-10 06:52:13,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:13,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:52:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:13,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:52:13,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:52:13,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:13,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-10 06:52:13,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:13,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:13,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:15,783 INFO L124 PetriNetUnfolderBase]: 29933/42110 cut-off events. [2025-01-10 06:52:15,783 INFO L125 PetriNetUnfolderBase]: For 464/464 co-relation queries the response was YES. [2025-01-10 06:52:15,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81898 conditions, 42110 events. 29933/42110 cut-off events. For 464/464 co-relation queries the response was YES. Maximal size of possible extension queue 2310. Compared 300803 event pairs, 22133 based on Foata normal form. 0/26713 useless extension candidates. Maximal degree in co-relation 81877. Up to 38693 conditions per place. [2025-01-10 06:52:15,999 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 49 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2025-01-10 06:52:16,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 278 flow [2025-01-10 06:52:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:52:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:52:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2025-01-10 06:52:16,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2025-01-10 06:52:16,001 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 140 flow. Second operand 3 states and 126 transitions. [2025-01-10 06:52:16,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 278 flow [2025-01-10 06:52:16,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:52:16,004 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 179 flow [2025-01-10 06:52:16,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2025-01-10 06:52:16,005 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2025-01-10 06:52:16,005 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 179 flow [2025-01-10 06:52:16,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-10 06:52:16,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:16,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:16,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:52:16,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:16,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:16,006 INFO L85 PathProgramCache]: Analyzing trace with hash 831631970, now seen corresponding path program 1 times [2025-01-10 06:52:16,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:16,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981107352] [2025-01-10 06:52:16,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:16,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:16,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:52:16,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:52:16,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:16,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:16,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:16,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981107352] [2025-01-10 06:52:16,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981107352] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:16,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:16,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:52:16,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499358277] [2025-01-10 06:52:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:16,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:52:16,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:16,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:52:16,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:52:16,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:16,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:52:16,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:16,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:16,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:17,636 INFO L124 PetriNetUnfolderBase]: 28506/40336 cut-off events. [2025-01-10 06:52:17,636 INFO L125 PetriNetUnfolderBase]: For 3787/3787 co-relation queries the response was YES. [2025-01-10 06:52:17,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86061 conditions, 40336 events. 28506/40336 cut-off events. For 3787/3787 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 291409 event pairs, 12278 based on Foata normal form. 0/25983 useless extension candidates. Maximal degree in co-relation 77067. Up to 36510 conditions per place. [2025-01-10 06:52:18,015 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 75 selfloop transitions, 11 changer transitions 0/104 dead transitions. [2025-01-10 06:52:18,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 104 transitions, 441 flow [2025-01-10 06:52:18,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:52:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:52:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 178 transitions. [2025-01-10 06:52:18,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095890410958904 [2025-01-10 06:52:18,017 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 179 flow. Second operand 4 states and 178 transitions. [2025-01-10 06:52:18,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 104 transitions, 441 flow [2025-01-10 06:52:18,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 104 transitions, 434 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:52:18,019 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 234 flow [2025-01-10 06:52:18,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2025-01-10 06:52:18,019 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -5 predicate places. [2025-01-10 06:52:18,019 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 234 flow [2025-01-10 06:52:18,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:52:18,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:18,020 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:18,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:52:18,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:18,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:18,020 INFO L85 PathProgramCache]: Analyzing trace with hash 816651990, now seen corresponding path program 1 times [2025-01-10 06:52:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744340507] [2025-01-10 06:52:18,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:18,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:18,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:52:18,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:52:18,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:18,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:18,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:18,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744340507] [2025-01-10 06:52:18,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744340507] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:18,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:18,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:52:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994292136] [2025-01-10 06:52:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:18,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:52:18,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:18,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:52:18,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:52:18,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:18,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 06:52:18,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:18,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:18,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:19,740 INFO L124 PetriNetUnfolderBase]: 26729/38156 cut-off events. [2025-01-10 06:52:19,740 INFO L125 PetriNetUnfolderBase]: For 12393/12393 co-relation queries the response was YES. [2025-01-10 06:52:19,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91898 conditions, 38156 events. 26729/38156 cut-off events. For 12393/12393 co-relation queries the response was YES. Maximal size of possible extension queue 2225. Compared 266931 event pairs, 10072 based on Foata normal form. 0/26322 useless extension candidates. Maximal degree in co-relation 52677. Up to 23696 conditions per place. [2025-01-10 06:52:19,941 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 80 selfloop transitions, 11 changer transitions 0/109 dead transitions. [2025-01-10 06:52:19,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 109 transitions, 551 flow [2025-01-10 06:52:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:52:19,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:52:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2025-01-10 06:52:19,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680365296803653 [2025-01-10 06:52:19,945 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 234 flow. Second operand 3 states and 149 transitions. [2025-01-10 06:52:19,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 109 transitions, 551 flow [2025-01-10 06:52:19,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 109 transitions, 517 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-01-10 06:52:19,947 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 296 flow [2025-01-10 06:52:19,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2025-01-10 06:52:19,948 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2025-01-10 06:52:19,948 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 296 flow [2025-01-10 06:52:19,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 06:52:19,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:19,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:19,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:52:19,949 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:19,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash 816651989, now seen corresponding path program 1 times [2025-01-10 06:52:19,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:19,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148884455] [2025-01-10 06:52:19,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:19,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:52:19,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:52:19,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:19,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148884455] [2025-01-10 06:52:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148884455] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:52:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051190457] [2025-01-10 06:52:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:20,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:52:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:20,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:52:20,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:52:20,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:20,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 06:52:20,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:20,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:20,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:20,850 INFO L124 PetriNetUnfolderBase]: 13338/19124 cut-off events. [2025-01-10 06:52:20,851 INFO L125 PetriNetUnfolderBase]: For 14647/14647 co-relation queries the response was YES. [2025-01-10 06:52:20,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50990 conditions, 19124 events. 13338/19124 cut-off events. For 14647/14647 co-relation queries the response was YES. Maximal size of possible extension queue 1046. Compared 125797 event pairs, 10730 based on Foata normal form. 2417/16669 useless extension candidates. Maximal degree in co-relation 13287. Up to 17607 conditions per place. [2025-01-10 06:52:20,972 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 50 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2025-01-10 06:52:20,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 71 transitions, 362 flow [2025-01-10 06:52:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:52:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:52:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2025-01-10 06:52:20,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5068493150684932 [2025-01-10 06:52:20,973 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 296 flow. Second operand 3 states and 111 transitions. [2025-01-10 06:52:20,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 71 transitions, 362 flow [2025-01-10 06:52:20,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 71 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:52:20,976 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 248 flow [2025-01-10 06:52:20,977 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2025-01-10 06:52:20,977 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-01-10 06:52:20,977 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 248 flow [2025-01-10 06:52:20,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-01-10 06:52:20,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:20,978 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:20,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:52:20,978 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:20,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash 326315264, now seen corresponding path program 1 times [2025-01-10 06:52:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:20,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315422580] [2025-01-10 06:52:20,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:20,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:52:20,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:52:20,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:20,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:21,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315422580] [2025-01-10 06:52:21,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315422580] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:21,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:52:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570858074] [2025-01-10 06:52:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:52:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:21,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:52:21,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:52:21,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:21,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 248 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2025-01-10 06:52:21,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:21,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:21,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:21,749 INFO L124 PetriNetUnfolderBase]: 10799/15756 cut-off events. [2025-01-10 06:52:21,749 INFO L125 PetriNetUnfolderBase]: For 6211/6211 co-relation queries the response was YES. [2025-01-10 06:52:21,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39640 conditions, 15756 events. 10799/15756 cut-off events. For 6211/6211 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 102116 event pairs, 2016 based on Foata normal form. 0/12405 useless extension candidates. Maximal degree in co-relation 39610. Up to 12905 conditions per place. [2025-01-10 06:52:21,826 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 92 selfloop transitions, 15 changer transitions 0/125 dead transitions. [2025-01-10 06:52:21,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 125 transitions, 630 flow [2025-01-10 06:52:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:52:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:52:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 213 transitions. [2025-01-10 06:52:21,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5835616438356165 [2025-01-10 06:52:21,827 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 248 flow. Second operand 5 states and 213 transitions. [2025-01-10 06:52:21,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 125 transitions, 630 flow [2025-01-10 06:52:21,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 125 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:52:21,829 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 320 flow [2025-01-10 06:52:21,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-01-10 06:52:21,830 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-01-10 06:52:21,830 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 320 flow [2025-01-10 06:52:21,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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) [2025-01-10 06:52:21,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:21,830 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:21,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:52:21,831 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:21,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:21,831 INFO L85 PathProgramCache]: Analyzing trace with hash -965142401, now seen corresponding path program 1 times [2025-01-10 06:52:21,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:21,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419455482] [2025-01-10 06:52:21,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:21,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:21,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 06:52:21,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 06:52:21,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:21,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:21,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:21,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419455482] [2025-01-10 06:52:21,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419455482] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:21,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:21,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:52:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609386245] [2025-01-10 06:52:21,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:21,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:52:21,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:21,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:52:21,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:52:21,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:21,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2025-01-10 06:52:21,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:21,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:21,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:22,353 INFO L124 PetriNetUnfolderBase]: 7497/10641 cut-off events. [2025-01-10 06:52:22,354 INFO L125 PetriNetUnfolderBase]: For 9357/9357 co-relation queries the response was YES. [2025-01-10 06:52:22,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30160 conditions, 10641 events. 7497/10641 cut-off events. For 9357/9357 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 59451 event pairs, 1136 based on Foata normal form. 0/9135 useless extension candidates. Maximal degree in co-relation 10573. Up to 6627 conditions per place. [2025-01-10 06:52:22,506 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 103 selfloop transitions, 11 changer transitions 0/132 dead transitions. [2025-01-10 06:52:22,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 132 transitions, 850 flow [2025-01-10 06:52:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:52:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:52:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2025-01-10 06:52:22,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6232876712328768 [2025-01-10 06:52:22,507 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 320 flow. Second operand 4 states and 182 transitions. [2025-01-10 06:52:22,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 132 transitions, 850 flow [2025-01-10 06:52:22,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 132 transitions, 768 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-01-10 06:52:22,510 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 344 flow [2025-01-10 06:52:22,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2025-01-10 06:52:22,511 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2025-01-10 06:52:22,511 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 344 flow [2025-01-10 06:52:22,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2025-01-10 06:52:22,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:22,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:22,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:52:22,511 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:22,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:22,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1660718805, now seen corresponding path program 1 times [2025-01-10 06:52:22,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:22,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985222215] [2025-01-10 06:52:22,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:22,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:22,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 06:52:22,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 06:52:22,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:22,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:22,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:22,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985222215] [2025-01-10 06:52:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985222215] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:22,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:22,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:52:22,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575392693] [2025-01-10 06:52:22,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:22,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:52:22,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:22,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:52:22,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:52:22,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:22,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 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) [2025-01-10 06:52:22,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:22,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:22,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:23,054 INFO L124 PetriNetUnfolderBase]: 6021/9149 cut-off events. [2025-01-10 06:52:23,054 INFO L125 PetriNetUnfolderBase]: For 8810/8810 co-relation queries the response was YES. [2025-01-10 06:52:23,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24530 conditions, 9149 events. 6021/9149 cut-off events. For 8810/8810 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 55545 event pairs, 134 based on Foata normal form. 0/8155 useless extension candidates. Maximal degree in co-relation 21109. Up to 3930 conditions per place. [2025-01-10 06:52:23,106 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 112 selfloop transitions, 19 changer transitions 0/149 dead transitions. [2025-01-10 06:52:23,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 149 transitions, 869 flow [2025-01-10 06:52:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:52:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:52:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 247 transitions. [2025-01-10 06:52:23,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5639269406392694 [2025-01-10 06:52:23,107 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 344 flow. Second operand 6 states and 247 transitions. [2025-01-10 06:52:23,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 149 transitions, 869 flow [2025-01-10 06:52:23,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 149 transitions, 811 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-01-10 06:52:23,114 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 328 flow [2025-01-10 06:52:23,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-01-10 06:52:23,115 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-01-10 06:52:23,115 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 328 flow [2025-01-10 06:52:23,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 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) [2025-01-10 06:52:23,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:23,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:23,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:52:23,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:23,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:23,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1618024604, now seen corresponding path program 1 times [2025-01-10 06:52:23,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:23,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922365078] [2025-01-10 06:52:23,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:23,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:23,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 06:52:23,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:52:23,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:23,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:23,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:23,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922365078] [2025-01-10 06:52:23,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922365078] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:23,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:23,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:52:23,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398360503] [2025-01-10 06:52:23,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:23,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:52:23,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:23,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:52:23,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:52:23,205 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:23,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 328 flow. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:52:23,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:23,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:23,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:23,535 INFO L124 PetriNetUnfolderBase]: 4669/6717 cut-off events. [2025-01-10 06:52:23,536 INFO L125 PetriNetUnfolderBase]: For 10293/10293 co-relation queries the response was YES. [2025-01-10 06:52:23,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19360 conditions, 6717 events. 4669/6717 cut-off events. For 10293/10293 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 35173 event pairs, 385 based on Foata normal form. 0/6472 useless extension candidates. Maximal degree in co-relation 6787. Up to 2145 conditions per place. [2025-01-10 06:52:23,566 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 104 selfloop transitions, 15 changer transitions 4/141 dead transitions. [2025-01-10 06:52:23,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 141 transitions, 886 flow [2025-01-10 06:52:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:52:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:52:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 213 transitions. [2025-01-10 06:52:23,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5835616438356165 [2025-01-10 06:52:23,568 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 328 flow. Second operand 5 states and 213 transitions. [2025-01-10 06:52:23,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 141 transitions, 886 flow [2025-01-10 06:52:23,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 141 transitions, 693 flow, removed 48 selfloop flow, removed 7 redundant places. [2025-01-10 06:52:23,573 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 297 flow [2025-01-10 06:52:23,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2025-01-10 06:52:23,574 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -6 predicate places. [2025-01-10 06:52:23,574 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 297 flow [2025-01-10 06:52:23,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:52:23,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:52:23,574 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:23,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:52:23,574 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-01-10 06:52:23,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:52:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash 299413730, now seen corresponding path program 1 times [2025-01-10 06:52:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:52:23,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345617515] [2025-01-10 06:52:23,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:52:23,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:52:23,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-10 06:52:23,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-10 06:52:23,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:52:23,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:52:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:52:23,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:52:23,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345617515] [2025-01-10 06:52:23,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345617515] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:52:23,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:52:23,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:52:23,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131662109] [2025-01-10 06:52:23,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:52:23,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:52:23,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:52:23,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:52:23,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:52:23,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 73 [2025-01-10 06:52:23,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2025-01-10 06:52:23,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:52:23,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 73 [2025-01-10 06:52:23,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:52:24,054 INFO L124 PetriNetUnfolderBase]: 4364/6285 cut-off events. [2025-01-10 06:52:24,054 INFO L125 PetriNetUnfolderBase]: For 6494/6494 co-relation queries the response was YES. [2025-01-10 06:52:24,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16552 conditions, 6285 events. 4364/6285 cut-off events. For 6494/6494 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 33152 event pairs, 320 based on Foata normal form. 81/6202 useless extension candidates. Maximal degree in co-relation 7470. Up to 2145 conditions per place. [2025-01-10 06:52:24,073 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2025-01-10 06:52:24,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 133 transitions, 667 flow [2025-01-10 06:52:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:52:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:52:24,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2025-01-10 06:52:24,074 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5182648401826484 [2025-01-10 06:52:24,075 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 297 flow. Second operand 6 states and 227 transitions. [2025-01-10 06:52:24,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 133 transitions, 667 flow [2025-01-10 06:52:24,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 606 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-01-10 06:52:24,105 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2025-01-10 06:52:24,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2025-01-10 06:52:24,106 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -11 predicate places. [2025-01-10 06:52:24,106 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2025-01-10 06:52:24,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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) [2025-01-10 06:52:24,108 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2025-01-10 06:52:24,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2025-01-10 06:52:24,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2025-01-10 06:52:24,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:52:24,111 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:52:24,114 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:52:24,114 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:52:24,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:52:24 BasicIcfg [2025-01-10 06:52:24,118 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:52:24,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:52:24,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:52:24,118 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:52:24,119 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:52:09" (3/4) ... [2025-01-10 06:52:24,120 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:52:24,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-10 06:52:24,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-10 06:52:24,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-01-10 06:52:24,122 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-01-10 06:52:24,125 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2025-01-10 06:52:24,125 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-10 06:52:24,125 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 06:52:24,125 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:52:24,179 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:52:24,179 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:52:24,179 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:52:24,180 INFO L158 Benchmark]: Toolchain (without parser) took 15745.17ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 111.8MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 760.4MB. Max. memory is 16.1GB. [2025-01-10 06:52:24,180 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:52:24,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.35ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 100.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:52:24,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.89ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:52:24,180 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:52:24,180 INFO L158 Benchmark]: RCFGBuilder took 517.33ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 56.2MB in the end (delta: 40.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-10 06:52:24,181 INFO L158 Benchmark]: TraceAbstraction took 14866.45ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 55.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 701.7MB. Max. memory is 16.1GB. [2025-01-10 06:52:24,181 INFO L158 Benchmark]: Witness Printer took 60.57ms. Allocated memory is still 3.2GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:52:24,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.35ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 100.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.89ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 517.33ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 56.2MB in the end (delta: 40.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14866.45ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 55.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 701.7MB. Max. memory is 16.1GB. * Witness Printer took 60.57ms. Allocated memory is still 3.2GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 123 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 476 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 994 IncrementalHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 9 mSDtfsCounter, 994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=7, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:52:24,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE