./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.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 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:01:14,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:01:14,839 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:01:14,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:01:14,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:01:14,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:01:14,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:01:14,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:01:14,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:01:14,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:01:14,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:01:14,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:01:14,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:01:14,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:01:14,886 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:01:14,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:01:14,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:01:14,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:01:14,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:01:14,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:01:14,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:01:14,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:01:14,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:01:14,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:01:14,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:01:14,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:01:14,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:01:14,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:01:14,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:01:14,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:01:14,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:01:14,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:01:14,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:01:14,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:01:14,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:01:14,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:01:14,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:01:14,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:01:14,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 [2024-11-20 22:01:15,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:01:15,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:01:15,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:01:15,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:01:15,118 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:01:15,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-20 22:01:16,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:01:16,523 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:01:16,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-20 22:01:16,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f00ad47e8/00db6eb6f215469fad46d943dac7e223/FLAGde222797d [2024-11-20 22:01:16,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f00ad47e8/00db6eb6f215469fad46d943dac7e223 [2024-11-20 22:01:16,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:01:16,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:01:16,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:01:16,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:01:16,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:01:16,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c746d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16, skipping insertion in model container [2024-11-20 22:01:16,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:01:16,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:01:16,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:01:16,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:01:16,769 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:01:16,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16 WrapperNode [2024-11-20 22:01:16,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:01:16,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:01:16,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:01:16,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:01:16,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,804 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 305 [2024-11-20 22:01:16,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:01:16,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:01:16,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:01:16,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:01:16,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,829 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 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]. [2024-11-20 22:01:16,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:01:16,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:01:16,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:01:16,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:01:16,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (1/1) ... [2024-11-20 22:01:16,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:01:16,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:01:16,881 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) [2024-11-20 22:01:16,884 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 [2024-11-20 22:01:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:01:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 22:01:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 22:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 22:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 22:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:01:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:01:16,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:01:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 22:01:16,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-20 22:01:16,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 22:01:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 22:01:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:01:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:01:16,926 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 22:01:17,015 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:01:17,017 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:01:17,386 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:01:17,403 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:01:17,754 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:01:17,755 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 22:01:17,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:17 BoogieIcfgContainer [2024-11-20 22:01:17,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:01:17,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:01:17,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:01:17,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:01:17,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:01:16" (1/3) ... [2024-11-20 22:01:17,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aab7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:17, skipping insertion in model container [2024-11-20 22:01:17,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:16" (2/3) ... [2024-11-20 22:01:17,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aab7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:17, skipping insertion in model container [2024-11-20 22:01:17,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:17" (3/3) ... [2024-11-20 22:01:17,764 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-11-20 22:01:17,778 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:01:17,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-20 22:01:17,778 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:01:17,917 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-11-20 22:01:17,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 218 flow [2024-11-20 22:01:17,996 INFO L124 PetriNetUnfolderBase]: 9/82 cut-off events. [2024-11-20 22:01:17,996 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 22:01:18,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 82 events. 9/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 238 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2024-11-20 22:01:18,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 218 flow [2024-11-20 22:01:18,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 80 transitions, 187 flow [2024-11-20 22:01:18,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:01:18,017 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;@7ef8d51a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:01:18,017 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-20 22:01:18,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:01:18,019 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-20 22:01:18,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:01:18,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:18,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 22:01:18,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:18,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash 33422, now seen corresponding path program 1 times [2024-11-20 22:01:18,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:18,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649064803] [2024-11-20 22:01:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:18,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:18,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649064803] [2024-11-20 22:01:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649064803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:18,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:01:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85947540] [2024-11-20 22:01:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:18,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:01:18,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:01:18,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:01:18,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:18,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 22:01:18,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:18,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:18,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:22,542 INFO L124 PetriNetUnfolderBase]: 38646/51872 cut-off events. [2024-11-20 22:01:22,542 INFO L125 PetriNetUnfolderBase]: For 1933/1933 co-relation queries the response was YES. [2024-11-20 22:01:22,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106411 conditions, 51872 events. 38646/51872 cut-off events. For 1933/1933 co-relation queries the response was YES. Maximal size of possible extension queue 1965. Compared 299551 event pairs, 35544 based on Foata normal form. 1/32860 useless extension candidates. Maximal degree in co-relation 106315. Up to 51843 conditions per place. [2024-11-20 22:01:22,895 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 62 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2024-11-20 22:01:22,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 70 transitions, 293 flow [2024-11-20 22:01:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:01:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:01:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-20 22:01:22,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3882783882783883 [2024-11-20 22:01:22,907 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 187 flow. Second operand 3 states and 106 transitions. [2024-11-20 22:01:22,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 70 transitions, 293 flow [2024-11-20 22:01:22,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 276 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-20 22:01:22,960 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 152 flow [2024-11-20 22:01:22,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-20 22:01:22,965 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2024-11-20 22:01:22,965 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 152 flow [2024-11-20 22:01:22,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 22:01:22,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:22,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 22:01:22,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:01:22,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:22,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1037105, now seen corresponding path program 1 times [2024-11-20 22:01:22,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:22,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724756417] [2024-11-20 22:01:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:22,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:23,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724756417] [2024-11-20 22:01:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724756417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:23,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:01:23,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656395826] [2024-11-20 22:01:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:23,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:01:23,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:01:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:01:23,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:23,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 22:01:23,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:23,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:23,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:25,734 INFO L124 PetriNetUnfolderBase]: 31318/42066 cut-off events. [2024-11-20 22:01:25,734 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-11-20 22:01:25,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85260 conditions, 42066 events. 31318/42066 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 236305 event pairs, 28618 based on Foata normal form. 0/27827 useless extension candidates. Maximal degree in co-relation 85254. Up to 42037 conditions per place. [2024-11-20 22:01:25,894 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 58 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-20 22:01:25,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 262 flow [2024-11-20 22:01:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:01:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:01:25,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-20 22:01:25,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3516483516483517 [2024-11-20 22:01:25,896 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 152 flow. Second operand 3 states and 96 transitions. [2024-11-20 22:01:25,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 262 flow [2024-11-20 22:01:25,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:01:25,898 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 145 flow [2024-11-20 22:01:25,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-20 22:01:25,899 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2024-11-20 22:01:25,899 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 145 flow [2024-11-20 22:01:25,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 22:01:25,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:25,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 22:01:25,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 22:01:25,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:25,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 996691151, now seen corresponding path program 1 times [2024-11-20 22:01:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:25,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054340721] [2024-11-20 22:01:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:26,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:26,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:26,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054340721] [2024-11-20 22:01:26,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054340721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:26,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:26,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:01:26,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435647856] [2024-11-20 22:01:26,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:26,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:01:26,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:26,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:01:26,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:01:26,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:26,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-20 22:01:26,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:26,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:26,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:28,747 INFO L124 PetriNetUnfolderBase]: 31319/42070 cut-off events. [2024-11-20 22:01:28,748 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-11-20 22:01:28,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85270 conditions, 42070 events. 31319/42070 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 236357 event pairs, 28618 based on Foata normal form. 1/27831 useless extension candidates. Maximal degree in co-relation 85263. Up to 42041 conditions per place. [2024-11-20 22:01:29,200 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 60 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-20 22:01:29,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 279 flow [2024-11-20 22:01:29,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:01:29,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:01:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-20 22:01:29,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3021978021978022 [2024-11-20 22:01:29,207 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 145 flow. Second operand 4 states and 110 transitions. [2024-11-20 22:01:29,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 279 flow [2024-11-20 22:01:29,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:01:29,209 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 173 flow [2024-11-20 22:01:29,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-11-20 22:01:29,211 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2024-11-20 22:01:29,211 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 173 flow [2024-11-20 22:01:29,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-20 22:01:29,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:29,212 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-20 22:01:29,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 22:01:29,212 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:29,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:29,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1318222748, now seen corresponding path program 1 times [2024-11-20 22:01:29,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:29,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072350709] [2024-11-20 22:01:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072350709] [2024-11-20 22:01:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072350709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:01:29,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370612268] [2024-11-20 22:01:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:29,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:01:29,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:01:29,326 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) [2024-11-20 22:01:29,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:01:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:29,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:01:29,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:01:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:29,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:01:29,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370612268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:29,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:01:29,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 22:01:29,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189300974] [2024-11-20 22:01:29,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:29,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:01:29,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:01:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:01:29,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:29,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-20 22:01:29,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:29,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:29,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:32,395 INFO L124 PetriNetUnfolderBase]: 31319/42069 cut-off events. [2024-11-20 22:01:32,401 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2024-11-20 22:01:32,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85281 conditions, 42069 events. 31319/42069 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 236457 event pairs, 28618 based on Foata normal form. 1/27831 useless extension candidates. Maximal degree in co-relation 85272. Up to 42036 conditions per place. [2024-11-20 22:01:32,695 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 56 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-11-20 22:01:32,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 68 transitions, 295 flow [2024-11-20 22:01:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:01:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:01:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-20 22:01:32,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-20 22:01:32,697 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 173 flow. Second operand 6 states and 130 transitions. [2024-11-20 22:01:32,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 68 transitions, 295 flow [2024-11-20 22:01:32,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:01:32,699 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 180 flow [2024-11-20 22:01:32,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=76, PETRI_TRANSITIONS=68} [2024-11-20 22:01:32,701 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2024-11-20 22:01:32,701 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 180 flow [2024-11-20 22:01:32,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-20 22:01:32,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:32,702 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-20 22:01:32,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 22:01:32,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:01:32,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:32,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:32,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2084766703, now seen corresponding path program 1 times [2024-11-20 22:01:32,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115782544] [2024-11-20 22:01:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:33,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115782544] [2024-11-20 22:01:33,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115782544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:01:33,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709560222] [2024-11-20 22:01:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:33,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:01:33,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:01:33,008 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) [2024-11-20 22:01:33,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:01:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:33,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:01:33,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:01:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:33,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:01:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:33,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709560222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:01:33,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:01:33,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-20 22:01:33,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630809664] [2024-11-20 22:01:33,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:01:33,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:01:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:33,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:01:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:01:33,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:33,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 68 transitions, 180 flow. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-20 22:01:33,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:33,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:33,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:36,315 INFO L124 PetriNetUnfolderBase]: 31322/42081 cut-off events. [2024-11-20 22:01:36,316 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-11-20 22:01:36,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85325 conditions, 42081 events. 31322/42081 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 236513 event pairs, 28618 based on Foata normal form. 3/27843 useless extension candidates. Maximal degree in co-relation 85316. Up to 42043 conditions per place. [2024-11-20 22:01:36,557 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 59 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2024-11-20 22:01:36,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 378 flow [2024-11-20 22:01:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:01:36,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:01:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-11-20 22:01:36,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2032967032967033 [2024-11-20 22:01:36,560 INFO L175 Difference]: Start difference. First operand has 76 places, 68 transitions, 180 flow. Second operand 10 states and 185 transitions. [2024-11-20 22:01:36,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 378 flow [2024-11-20 22:01:36,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 332 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-20 22:01:36,563 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 232 flow [2024-11-20 22:01:36,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-20 22:01:36,566 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2024-11-20 22:01:36,567 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 232 flow [2024-11-20 22:01:36,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-20 22:01:36,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:36,568 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:01:36,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 22:01:36,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:01:36,772 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:36,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:36,772 INFO L85 PathProgramCache]: Analyzing trace with hash 353947523, now seen corresponding path program 1 times [2024-11-20 22:01:36,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:36,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644533555] [2024-11-20 22:01:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:36,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:36,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644533555] [2024-11-20 22:01:36,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644533555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:36,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:36,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:01:36,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472990057] [2024-11-20 22:01:36,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:36,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:01:36,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:36,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:01:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:01:36,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-11-20 22:01:36,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 22:01:36,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:36,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-11-20 22:01:36,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:40,551 INFO L124 PetriNetUnfolderBase]: 44938/60299 cut-off events. [2024-11-20 22:01:40,551 INFO L125 PetriNetUnfolderBase]: For 508/508 co-relation queries the response was YES. [2024-11-20 22:01:40,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121933 conditions, 60299 events. 44938/60299 cut-off events. For 508/508 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 353239 event pairs, 28644 based on Foata normal form. 0/41192 useless extension candidates. Maximal degree in co-relation 121922. Up to 42056 conditions per place. [2024-11-20 22:01:41,069 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 113 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-11-20 22:01:41,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 557 flow [2024-11-20 22:01:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:01:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:01:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-20 22:01:41,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-20 22:01:41,071 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 232 flow. Second operand 3 states and 143 transitions. [2024-11-20 22:01:41,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 557 flow [2024-11-20 22:01:41,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 121 transitions, 546 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 22:01:41,074 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 233 flow [2024-11-20 22:01:41,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-11-20 22:01:41,079 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2024-11-20 22:01:41,079 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 233 flow [2024-11-20 22:01:41,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-20 22:01:41,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:41,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:01:41,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 22:01:41,080 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2098893595, now seen corresponding path program 1 times [2024-11-20 22:01:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:41,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115807627] [2024-11-20 22:01:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115807627] [2024-11-20 22:01:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115807627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:41,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:41,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:01:41,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303375902] [2024-11-20 22:01:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:41,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:01:41,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:01:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:01:41,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-11-20 22:01:41,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-20 22:01:41,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:41,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-11-20 22:01:41,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:45,822 INFO L124 PetriNetUnfolderBase]: 55353/74399 cut-off events. [2024-11-20 22:01:45,823 INFO L125 PetriNetUnfolderBase]: For 5187/5187 co-relation queries the response was YES. [2024-11-20 22:01:46,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155104 conditions, 74399 events. 55353/74399 cut-off events. For 5187/5187 co-relation queries the response was YES. Maximal size of possible extension queue 2369. Compared 444906 event pairs, 28908 based on Foata normal form. 0/52630 useless extension candidates. Maximal degree in co-relation 155091. Up to 60620 conditions per place. [2024-11-20 22:01:46,445 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 107 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2024-11-20 22:01:46,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 116 transitions, 547 flow [2024-11-20 22:01:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:01:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:01:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-11-20 22:01:46,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5018315018315018 [2024-11-20 22:01:46,446 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 233 flow. Second operand 3 states and 137 transitions. [2024-11-20 22:01:46,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 116 transitions, 547 flow [2024-11-20 22:01:46,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:01:46,461 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 252 flow [2024-11-20 22:01:46,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-20 22:01:46,462 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 2 predicate places. [2024-11-20 22:01:46,462 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 252 flow [2024-11-20 22:01:46,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-20 22:01:46,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:46,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:01:46,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 22:01:46,463 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-20 22:01:46,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1912527504, now seen corresponding path program 1 times [2024-11-20 22:01:46,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:46,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018878489] [2024-11-20 22:01:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:46,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:46,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018878489] [2024-11-20 22:01:46,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018878489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:46,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:46,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 22:01:46,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257693069] [2024-11-20 22:01:46,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:46,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 22:01:46,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:46,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:01:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:01:46,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-20 22:01:46,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-20 22:01:46,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:46,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-20 22:01:46,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand