./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-lamport.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-lamport.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:10:11,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:10:11,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:10:11,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:10:11,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:10:11,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:10:11,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:10:11,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:10:11,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:10:11,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:10:11,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:10:11,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:10:11,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:10:11,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:10:11,598 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:10:11,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:10:11,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:10:11,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:10:11,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:10:11,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:10:11,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:10:11,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:10:11,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:10:11,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:10:11,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:10:11,604 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:10:11,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:10:11,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:10:11,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:10:11,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:10:11,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:10:11,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:10:11,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:10:11,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:10:11,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:10:11,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:10:11,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:10:11,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:10:11,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:10:11,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:10:11,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:10:11,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:10:11,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:10:11,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:10:11,611 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 [2024-11-09 15:10:11,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:10:11,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:10:11,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:10:11,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:10:11,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:10:11,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-09 15:10:13,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:10:13,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:10:13,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-09 15:10:13,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48b7d7e8/ca7e57f198724bcbbfe5fb217a3ed063/FLAG6c93e86ac [2024-11-09 15:10:13,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48b7d7e8/ca7e57f198724bcbbfe5fb217a3ed063 [2024-11-09 15:10:13,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:10:13,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:10:13,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:13,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:10:13,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:10:13,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a736845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13, skipping insertion in model container [2024-11-09 15:10:13,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:10:13,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:13,789 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:10:13,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:13,830 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:10:13,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13 WrapperNode [2024-11-09 15:10:13,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:13,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:13,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:10:13,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:10:13,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,875 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 215 [2024-11-09 15:10:13,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:13,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:10:13,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:10:13,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:10:13,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,909 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-09 15:10:13,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:10:13,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:10:13,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:10:13,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:10:13,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (1/1) ... [2024-11-09 15:10:13,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:10:13,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:13,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:10:13,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:10:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:10:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:10:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:10:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:10:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:10:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:10:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:10:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:10:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:10:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:10:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:10:14,016 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:10:14,122 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:10:14,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:10:14,434 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:10:14,435 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:10:14,672 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:10:14,672 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:10:14,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:14 BoogieIcfgContainer [2024-11-09 15:10:14,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:10:14,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:10:14,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:10:14,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:10:14,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:10:13" (1/3) ... [2024-11-09 15:10:14,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491a0f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:14, skipping insertion in model container [2024-11-09 15:10:14,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:13" (2/3) ... [2024-11-09 15:10:14,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491a0f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:14, skipping insertion in model container [2024-11-09 15:10:14,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:14" (3/3) ... [2024-11-09 15:10:14,683 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-11-09 15:10:14,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:10:14,700 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 15:10:14,700 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:10:14,756 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:10:14,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 161 flow [2024-11-09 15:10:14,826 INFO L124 PetriNetUnfolderBase]: 1/67 cut-off events. [2024-11-09 15:10:14,826 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:10:14,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-11-09 15:10:14,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 70 transitions, 161 flow [2024-11-09 15:10:14,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 64 transitions, 140 flow [2024-11-09 15:10:14,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:10:14,852 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;@56e0dcab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:10:14,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:10:14,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:10:14,858 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 15:10:14,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:10:14,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:14,859 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:14,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:14,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1078065324, now seen corresponding path program 1 times [2024-11-09 15:10:14,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:14,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899649241] [2024-11-09 15:10:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:14,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:15,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:15,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899649241] [2024-11-09 15:10:15,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899649241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:15,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:15,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:15,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564571146] [2024-11-09 15:10:15,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:15,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:15,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:15,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-09 15:10:15,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-09 15:10:15,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:15,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-09 15:10:15,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:15,566 INFO L124 PetriNetUnfolderBase]: 305/637 cut-off events. [2024-11-09 15:10:15,566 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-09 15:10:15,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 637 events. 305/637 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3680 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1056. Up to 501 conditions per place. [2024-11-09 15:10:15,578 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 27 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2024-11-09 15:10:15,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 67 transitions, 208 flow [2024-11-09 15:10:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:10:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:10:15,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-09 15:10:15,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.675 [2024-11-09 15:10:15,595 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 140 flow. Second operand 4 states and 189 transitions. [2024-11-09 15:10:15,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 67 transitions, 208 flow [2024-11-09 15:10:15,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:10:15,606 INFO L231 Difference]: Finished difference. Result has 74 places, 67 transitions, 163 flow [2024-11-09 15:10:15,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=67} [2024-11-09 15:10:15,613 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2024-11-09 15:10:15,615 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 67 transitions, 163 flow [2024-11-09 15:10:15,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-09 15:10:15,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:15,616 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:15,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:10:15,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:15,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:15,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1121957253, now seen corresponding path program 1 times [2024-11-09 15:10:15,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:15,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605291246] [2024-11-09 15:10:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:15,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:15,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:15,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605291246] [2024-11-09 15:10:15,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605291246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:10:15,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432841327] [2024-11-09 15:10:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:15,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:10:15,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:15,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:10:15,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:10:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:15,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:10:15,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:10:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:15,973 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:10:15,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432841327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:15,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:10:15,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:10:15,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621001473] [2024-11-09 15:10:15,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:15,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:10:15,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-09 15:10:15,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 67 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-11-09 15:10:15,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:15,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-09 15:10:15,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:16,164 INFO L124 PetriNetUnfolderBase]: 305/636 cut-off events. [2024-11-09 15:10:16,164 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 15:10:16,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 636 events. 305/636 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3730 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1167. Up to 496 conditions per place. [2024-11-09 15:10:16,169 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 23 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-11-09 15:10:16,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 219 flow [2024-11-09 15:10:16,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:10:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:10:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2024-11-09 15:10:16,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-09 15:10:16,176 INFO L175 Difference]: Start difference. First operand has 74 places, 67 transitions, 163 flow. Second operand 6 states and 265 transitions. [2024-11-09 15:10:16,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 219 flow [2024-11-09 15:10:16,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:10:16,199 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 170 flow [2024-11-09 15:10:16,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2024-11-09 15:10:16,200 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2024-11-09 15:10:16,200 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 170 flow [2024-11-09 15:10:16,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-11-09 15:10:16,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:16,201 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:16,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:10:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:10:16,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:16,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash 420937065, now seen corresponding path program 1 times [2024-11-09 15:10:16,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:16,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629150021] [2024-11-09 15:10:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:16,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:16,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:16,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629150021] [2024-11-09 15:10:16,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629150021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:10:16,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300897839] [2024-11-09 15:10:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:16,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:10:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:16,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:10:16,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:10:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:16,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:10:16,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:10:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:16,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:10:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:16,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300897839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:10:16,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:10:16,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:10:16,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740236141] [2024-11-09 15:10:16,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:10:16,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:10:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:16,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:10:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:10:16,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-09 15:10:16,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 170 flow. Second operand has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-11-09 15:10:16,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:16,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-09 15:10:16,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:16,998 INFO L124 PetriNetUnfolderBase]: 308/648 cut-off events. [2024-11-09 15:10:16,998 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-09 15:10:17,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 648 events. 308/648 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3739 event pairs, 303 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 1168. Up to 503 conditions per place. [2024-11-09 15:10:17,003 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 26 selfloop transitions, 13 changer transitions 0/75 dead transitions. [2024-11-09 15:10:17,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 302 flow [2024-11-09 15:10:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:10:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:10:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 432 transitions. [2024-11-09 15:10:17,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6171428571428571 [2024-11-09 15:10:17,007 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 170 flow. Second operand 10 states and 432 transitions. [2024-11-09 15:10:17,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 302 flow [2024-11-09 15:10:17,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 256 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-09 15:10:17,012 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 222 flow [2024-11-09 15:10:17,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=222, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-09 15:10:17,013 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-11-09 15:10:17,013 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 222 flow [2024-11-09 15:10:17,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-11-09 15:10:17,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:17,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:17,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:10:17,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 15:10:17,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:17,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:17,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2018505786, now seen corresponding path program 1 times [2024-11-09 15:10:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490127280] [2024-11-09 15:10:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:17,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:17,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:17,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490127280] [2024-11-09 15:10:17,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490127280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:17,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:17,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:17,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009928702] [2024-11-09 15:10:17,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:17,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:17,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:17,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:17,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-11-09 15:10:17,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-09 15:10:17,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:17,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-11-09 15:10:17,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:17,491 INFO L124 PetriNetUnfolderBase]: 638/1292 cut-off events. [2024-11-09 15:10:17,491 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-09 15:10:17,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 1292 events. 638/1292 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7944 event pairs, 306 based on Foata normal form. 61/1308 useless extension candidates. Maximal degree in co-relation 2403. Up to 560 conditions per place. [2024-11-09 15:10:17,498 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 46 selfloop transitions, 3 changer transitions 4/85 dead transitions. [2024-11-09 15:10:17,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 351 flow [2024-11-09 15:10:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-09 15:10:17,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2024-11-09 15:10:17,500 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 222 flow. Second operand 3 states and 151 transitions. [2024-11-09 15:10:17,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 351 flow [2024-11-09 15:10:17,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 340 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:17,505 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 224 flow [2024-11-09 15:10:17,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2024-11-09 15:10:17,506 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2024-11-09 15:10:17,506 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 224 flow [2024-11-09 15:10:17,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-09 15:10:17,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:17,507 INFO L204 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] [2024-11-09 15:10:17,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:10:17,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:17,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:17,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1593528345, now seen corresponding path program 1 times [2024-11-09 15:10:17,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:17,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878329094] [2024-11-09 15:10:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:17,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:17,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:17,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878329094] [2024-11-09 15:10:17,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878329094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:17,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:17,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:17,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640859262] [2024-11-09 15:10:17,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:17,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:17,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:17,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:17,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:17,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-11-09 15:10:17,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:10:17,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:17,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-11-09 15:10:17,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:17,745 INFO L124 PetriNetUnfolderBase]: 658/1330 cut-off events. [2024-11-09 15:10:17,745 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-09 15:10:17,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 1330 events. 658/1330 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8322 event pairs, 341 based on Foata normal form. 59/1321 useless extension candidates. Maximal degree in co-relation 2500. Up to 539 conditions per place. [2024-11-09 15:10:17,752 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 48 selfloop transitions, 3 changer transitions 3/86 dead transitions. [2024-11-09 15:10:17,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 86 transitions, 358 flow [2024-11-09 15:10:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2024-11-09 15:10:17,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-11-09 15:10:17,754 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 224 flow. Second operand 3 states and 152 transitions. [2024-11-09 15:10:17,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 86 transitions, 358 flow [2024-11-09 15:10:17,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:17,757 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 231 flow [2024-11-09 15:10:17,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-11-09 15:10:17,757 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 13 predicate places. [2024-11-09 15:10:17,758 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 231 flow [2024-11-09 15:10:17,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:10:17,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:17,758 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:17,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:10:17,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:17,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1306704058, now seen corresponding path program 2 times [2024-11-09 15:10:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425597290] [2024-11-09 15:10:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:17,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425597290] [2024-11-09 15:10:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425597290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:10:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860477920] [2024-11-09 15:10:17,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:10:17,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:10:17,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:17,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:10:17,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:10:18,016 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:10:18,016 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:10:18,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:10:18,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:10:18,083 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:10:18,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:10:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:10:18,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860477920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:10:18,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:10:18,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2024-11-09 15:10:18,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597911733] [2024-11-09 15:10:18,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:10:18,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 15:10:18,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:18,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 15:10:18,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 15:10:18,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2024-11-09 15:10:18,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 231 flow. Second operand has 16 states, 16 states have (on average 39.5) internal successors, (632), 16 states have internal predecessors, (632), 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) [2024-11-09 15:10:18,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:18,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2024-11-09 15:10:18,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:18,501 INFO L124 PetriNetUnfolderBase]: 363/771 cut-off events. [2024-11-09 15:10:18,502 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-09 15:10:18,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 771 events. 363/771 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4815 event pairs, 357 based on Foata normal form. 2/677 useless extension candidates. Maximal degree in co-relation 1449. Up to 600 conditions per place. [2024-11-09 15:10:18,506 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 21 selfloop transitions, 21 changer transitions 0/77 dead transitions. [2024-11-09 15:10:18,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 77 transitions, 321 flow [2024-11-09 15:10:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:10:18,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:10:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 652 transitions. [2024-11-09 15:10:18,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5821428571428572 [2024-11-09 15:10:18,509 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 231 flow. Second operand 16 states and 652 transitions. [2024-11-09 15:10:18,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 77 transitions, 321 flow [2024-11-09 15:10:18,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 77 transitions, 303 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-09 15:10:18,513 INFO L231 Difference]: Finished difference. Result has 94 places, 77 transitions, 261 flow [2024-11-09 15:10:18,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=261, PETRI_PLACES=94, PETRI_TRANSITIONS=77} [2024-11-09 15:10:18,514 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 21 predicate places. [2024-11-09 15:10:18,515 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 77 transitions, 261 flow [2024-11-09 15:10:18,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 39.5) internal successors, (632), 16 states have internal predecessors, (632), 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) [2024-11-09 15:10:18,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:18,515 INFO L204 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] [2024-11-09 15:10:18,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:10:18,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:10:18,716 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:18,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash 879887155, now seen corresponding path program 1 times [2024-11-09 15:10:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:18,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530755815] [2024-11-09 15:10:18,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:18,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:18,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530755815] [2024-11-09 15:10:18,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530755815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:18,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:18,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977797183] [2024-11-09 15:10:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:18,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:18,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-09 15:10:18,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 77 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:18,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:18,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-09 15:10:18,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:19,086 INFO L124 PetriNetUnfolderBase]: 1352/2698 cut-off events. [2024-11-09 15:10:19,086 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-09 15:10:19,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5238 conditions, 2698 events. 1352/2698 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18645 event pairs, 521 based on Foata normal form. 30/2690 useless extension candidates. Maximal degree in co-relation 5129. Up to 776 conditions per place. [2024-11-09 15:10:19,097 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 59 selfloop transitions, 5 changer transitions 25/115 dead transitions. [2024-11-09 15:10:19,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 115 transitions, 529 flow [2024-11-09 15:10:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2024-11-09 15:10:19,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-09 15:10:19,099 INFO L175 Difference]: Start difference. First operand has 94 places, 77 transitions, 261 flow. Second operand 5 states and 230 transitions. [2024-11-09 15:10:19,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 115 transitions, 529 flow [2024-11-09 15:10:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 115 transitions, 454 flow, removed 6 selfloop flow, removed 14 redundant places. [2024-11-09 15:10:19,101 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 194 flow [2024-11-09 15:10:19,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-11-09 15:10:19,104 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-11-09 15:10:19,104 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 194 flow [2024-11-09 15:10:19,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:19,105 INFO L204 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] [2024-11-09 15:10:19,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:10:19,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:19,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:19,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1029117957, now seen corresponding path program 1 times [2024-11-09 15:10:19,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:19,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009345315] [2024-11-09 15:10:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:19,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:19,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:19,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009345315] [2024-11-09 15:10:19,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009345315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:19,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:19,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17428380] [2024-11-09 15:10:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:19,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:19,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:19,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-09 15:10:19,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:19,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-09 15:10:19,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:19,363 INFO L124 PetriNetUnfolderBase]: 632/1376 cut-off events. [2024-11-09 15:10:19,363 INFO L125 PetriNetUnfolderBase]: For 277/277 co-relation queries the response was YES. [2024-11-09 15:10:19,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1376 events. 632/1376 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8092 event pairs, 251 based on Foata normal form. 30/1386 useless extension candidates. Maximal degree in co-relation 1748. Up to 390 conditions per place. [2024-11-09 15:10:19,369 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 58 selfloop transitions, 5 changer transitions 3/92 dead transitions. [2024-11-09 15:10:19,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 363 flow [2024-11-09 15:10:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:10:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:10:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-09 15:10:19,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-09 15:10:19,370 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 194 flow. Second operand 4 states and 176 transitions. [2024-11-09 15:10:19,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 363 flow [2024-11-09 15:10:19,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 92 transitions, 356 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-09 15:10:19,373 INFO L231 Difference]: Finished difference. Result has 82 places, 75 transitions, 193 flow [2024-11-09 15:10:19,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=82, PETRI_TRANSITIONS=75} [2024-11-09 15:10:19,374 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 9 predicate places. [2024-11-09 15:10:19,374 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 75 transitions, 193 flow [2024-11-09 15:10:19,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:19,375 INFO L204 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] [2024-11-09 15:10:19,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:10:19,375 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:19,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1137418076, now seen corresponding path program 1 times [2024-11-09 15:10:19,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:19,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119162446] [2024-11-09 15:10:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:19,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119162446] [2024-11-09 15:10:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119162446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:19,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:19,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567605602] [2024-11-09 15:10:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:19,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:19,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-09 15:10:19,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 75 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:19,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-09 15:10:19,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:19,582 INFO L124 PetriNetUnfolderBase]: 549/1147 cut-off events. [2024-11-09 15:10:19,582 INFO L125 PetriNetUnfolderBase]: For 378/416 co-relation queries the response was YES. [2024-11-09 15:10:19,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1147 events. 549/1147 cut-off events. For 378/416 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6413 event pairs, 348 based on Foata normal form. 24/1138 useless extension candidates. Maximal degree in co-relation 1196. Up to 579 conditions per place. [2024-11-09 15:10:19,587 INFO L140 encePairwiseOnDemand]: 66/70 looper letters, 45 selfloop transitions, 3 changer transitions 12/82 dead transitions. [2024-11-09 15:10:19,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 320 flow [2024-11-09 15:10:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:10:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:10:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-11-09 15:10:19,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-11-09 15:10:19,588 INFO L175 Difference]: Start difference. First operand has 82 places, 75 transitions, 193 flow. Second operand 4 states and 166 transitions. [2024-11-09 15:10:19,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 320 flow [2024-11-09 15:10:19,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 307 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:10:19,590 INFO L231 Difference]: Finished difference. Result has 80 places, 64 transitions, 159 flow [2024-11-09 15:10:19,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2024-11-09 15:10:19,591 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 7 predicate places. [2024-11-09 15:10:19,592 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 159 flow [2024-11-09 15:10:19,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:19,592 INFO L204 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] [2024-11-09 15:10:19,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:10:19,593 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:10:19,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:19,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1038237803, now seen corresponding path program 1 times [2024-11-09 15:10:19,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:19,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293308254] [2024-11-09 15:10:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:19,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:19,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:19,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293308254] [2024-11-09 15:10:19,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293308254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:19,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:19,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:19,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476472744] [2024-11-09 15:10:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:19,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:19,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:19,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-09 15:10:19,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:19,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-09 15:10:19,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:19,709 INFO L124 PetriNetUnfolderBase]: 69/193 cut-off events. [2024-11-09 15:10:19,709 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-11-09 15:10:19,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 193 events. 69/193 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 661 event pairs, 63 based on Foata normal form. 30/208 useless extension candidates. Maximal degree in co-relation 326. Up to 152 conditions per place. [2024-11-09 15:10:19,710 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2024-11-09 15:10:19,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 237 flow [2024-11-09 15:10:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:19,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-09 15:10:19,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-09 15:10:19,711 INFO L175 Difference]: Start difference. First operand has 80 places, 64 transitions, 159 flow. Second operand 3 states and 120 transitions. [2024-11-09 15:10:19,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 237 flow [2024-11-09 15:10:19,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 225 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:10:19,712 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-09 15:10:19,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-09 15:10:19,712 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -7 predicate places. [2024-11-09 15:10:19,713 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-09 15:10:19,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 15:10:19,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-09 15:10:19,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 15:10:19,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 15:10:19,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 15:10:19,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 15:10:19,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:10:19,717 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:19,722 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:10:19,722 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:10:19,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:10:19 BasicIcfg [2024-11-09 15:10:19,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:10:19,730 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:10:19,730 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:10:19,731 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:10:19,731 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:14" (3/4) ... [2024-11-09 15:10:19,732 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:10:19,737 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:10:19,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:10:19,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 15:10:19,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2024-11-09 15:10:19,746 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-09 15:10:19,746 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 15:10:19,746 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:10:19,858 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:10:19,858 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:10:19,858 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:10:19,859 INFO L158 Benchmark]: Toolchain (without parser) took 6354.50ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 121.2MB in the beginning and 97.5MB in the end (delta: 23.6MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,859 INFO L158 Benchmark]: CDTParser took 1.81ms. Allocated memory is still 176.2MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:10:19,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.48ms. Allocated memory is still 176.2MB. Free memory was 120.9MB in the beginning and 107.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.66ms. Allocated memory is still 176.2MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,860 INFO L158 Benchmark]: Boogie Preprocessor took 56.31ms. Allocated memory is still 176.2MB. Free memory was 104.7MB in the beginning and 102.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,860 INFO L158 Benchmark]: RCFGBuilder took 739.80ms. Allocated memory is still 176.2MB. Free memory was 102.0MB in the beginning and 117.3MB in the end (delta: -15.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,860 INFO L158 Benchmark]: TraceAbstraction took 5054.45ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 116.5MB in the beginning and 103.8MB in the end (delta: 12.6MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,860 INFO L158 Benchmark]: Witness Printer took 127.83ms. Allocated memory is still 241.2MB. Free memory was 102.8MB in the beginning and 97.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:10:19,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.81ms. Allocated memory is still 176.2MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.48ms. Allocated memory is still 176.2MB. Free memory was 120.9MB in the beginning and 107.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.66ms. Allocated memory is still 176.2MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.31ms. Allocated memory is still 176.2MB. Free memory was 104.7MB in the beginning and 102.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 739.80ms. Allocated memory is still 176.2MB. Free memory was 102.0MB in the beginning and 117.3MB in the end (delta: -15.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5054.45ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 116.5MB in the beginning and 103.8MB in the end (delta: 12.6MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. * Witness Printer took 127.83ms. Allocated memory is still 241.2MB. Free memory was 102.8MB in the beginning and 97.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 13 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 975 IncrementalHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 46 mSDtfsCounter, 975 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 94 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=6, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 289 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 10 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 46/103 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:10:19,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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