./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/popl20-more-sum-array-hom.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/popl20-more-sum-array-hom.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 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:04:16,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:04:16,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:04:16,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:04:16,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:04:16,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:04:16,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:04:16,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:04:16,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:04:16,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:04:16,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:04:16,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:04:16,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:04:16,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:04:16,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:04:16,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:04:16,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:04:16,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:04:16,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:04:16,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:04:16,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:04:16,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:04:16,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:04:16,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:04:16,867 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:04:16,868 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:04:16,868 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:04:16,868 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:04:16,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:04:16,869 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:04:16,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:04:16,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:04:16,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:04:16,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:04:16,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:04:16,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:04:16,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:04:16,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:04:16,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:04:16,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:04:16,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:04:16,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:04:16,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:04:16,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:04:16,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a [2024-11-20 22:04:17,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:04:17,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:04:17,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:04:17,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:04:17,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:04:17,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2024-11-20 22:04:18,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:04:18,758 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:04:18,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2024-11-20 22:04:18,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96d368dce/cfa7114279ee4c959cf7f793c55c979c/FLAGef7d47d17 [2024-11-20 22:04:18,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96d368dce/cfa7114279ee4c959cf7f793c55c979c [2024-11-20 22:04:18,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:04:18,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:04:18,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:04:18,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:04:18,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:04:18,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:04:18" (1/1) ... [2024-11-20 22:04:18,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5b8645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:18, skipping insertion in model container [2024-11-20 22:04:18,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:04:18" (1/1) ... [2024-11-20 22:04:18,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:04:19,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:04:19,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:04:19,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:04:19,093 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:04:19,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19 WrapperNode [2024-11-20 22:04:19,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:04:19,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:04:19,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:04:19,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:04:19,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,135 INFO L138 Inliner]: procedures = 24, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-20 22:04:19,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:04:19,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:04:19,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:04:19,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:04:19,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,189 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 22:04:19,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:04:19,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:04:19,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:04:19,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:04:19,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (1/1) ... [2024-11-20 22:04:19,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:04:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:19,253 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 22:04:19,256 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 22:04:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:04:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:04:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:04:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 22:04:19,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 22:04:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 22:04:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:04:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:04:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 22:04:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 22:04:19,298 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 22:04:19,386 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:04:19,388 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:04:19,602 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:04:19,603 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:04:19,835 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:04:19,838 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 22:04:19,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:19 BoogieIcfgContainer [2024-11-20 22:04:19,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:04:19,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:04:19,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:04:19,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:04:19,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:04:18" (1/3) ... [2024-11-20 22:04:19,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35026ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:04:19, skipping insertion in model container [2024-11-20 22:04:19,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:19" (2/3) ... [2024-11-20 22:04:19,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35026ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:04:19, skipping insertion in model container [2024-11-20 22:04:19,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:19" (3/3) ... [2024-11-20 22:04:19,850 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2024-11-20 22:04:19,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:04:19,868 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-20 22:04:19,868 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:04:19,925 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 22:04:20,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 103 flow [2024-11-20 22:04:20,045 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2024-11-20 22:04:20,046 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 22:04:20,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 4/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-20 22:04:20,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 41 transitions, 103 flow [2024-11-20 22:04:20,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 36 transitions, 87 flow [2024-11-20 22:04:20,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:04:20,071 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;@37130963, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:04:20,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-20 22:04:20,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:04:20,075 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 22:04:20,075 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:04:20,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:20,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 22:04:20,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash 414209, now seen corresponding path program 1 times [2024-11-20 22:04:20,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:20,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245367794] [2024-11-20 22:04:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:20,319 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 22:04:20,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:20,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245367794] [2024-11-20 22:04:20,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245367794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:20,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:20,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:20,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725225214] [2024-11-20 22:04:20,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:20,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:20,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:20,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:20,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 22:04:20,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:20,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:20,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:20,601 INFO L124 PetriNetUnfolderBase]: 431/766 cut-off events. [2024-11-20 22:04:20,601 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-20 22:04:20,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 766 events. 431/766 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3489 event pairs, 306 based on Foata normal form. 1/586 useless extension candidates. Maximal degree in co-relation 1298. Up to 625 conditions per place. [2024-11-20 22:04:20,610 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 25 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2024-11-20 22:04:20,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 151 flow [2024-11-20 22:04:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-20 22:04:20,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5060975609756098 [2024-11-20 22:04:20,625 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 87 flow. Second operand 4 states and 83 transitions. [2024-11-20 22:04:20,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 151 flow [2024-11-20 22:04:20,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 142 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 22:04:20,632 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 107 flow [2024-11-20 22:04:20,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2024-11-20 22:04:20,639 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-11-20 22:04:20,640 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 107 flow [2024-11-20 22:04:20,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 22:04:20,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:20,640 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 22:04:20,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:04:20,641 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:20,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:20,641 INFO L85 PathProgramCache]: Analyzing trace with hash -544808502, now seen corresponding path program 1 times [2024-11-20 22:04:20,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:20,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76237752] [2024-11-20 22:04:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:20,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:20,807 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 22:04:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76237752] [2024-11-20 22:04:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76237752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925957578] [2024-11-20 22:04:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:20,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:20,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:20,813 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 22:04:20,814 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 22:04:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:20,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:20,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:20,939 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 22:04:20,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:04:20,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925957578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:20,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:04:20,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 22:04:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036798127] [2024-11-20 22:04:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:20,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:04:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:20,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:04:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:04:20,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:20,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 22:04:20,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:20,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:20,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:21,157 INFO L124 PetriNetUnfolderBase]: 431/765 cut-off events. [2024-11-20 22:04:21,158 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-20 22:04:21,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 765 events. 431/765 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3477 event pairs, 306 based on Foata normal form. 1/586 useless extension candidates. Maximal degree in co-relation 1416. Up to 620 conditions per place. [2024-11-20 22:04:21,164 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 21 selfloop transitions, 7 changer transitions 0/38 dead transitions. [2024-11-20 22:04:21,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 38 transitions, 159 flow [2024-11-20 22:04:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:04:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:04:21,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-20 22:04:21,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4349593495934959 [2024-11-20 22:04:21,167 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 107 flow. Second operand 6 states and 107 transitions. [2024-11-20 22:04:21,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 38 transitions, 159 flow [2024-11-20 22:04:21,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:21,169 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 114 flow [2024-11-20 22:04:21,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-20 22:04:21,170 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-11-20 22:04:21,170 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 114 flow [2024-11-20 22:04:21,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 22:04:21,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:21,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 22:04:21,180 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 22:04:21,371 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 [2024-11-20 22:04:21,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:21,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash -542129103, now seen corresponding path program 1 times [2024-11-20 22:04:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:21,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168189894] [2024-11-20 22:04:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:21,461 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 22:04:21,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168189894] [2024-11-20 22:04:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168189894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:04:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564299740] [2024-11-20 22:04:21,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:21,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:21,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:21,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 22:04:21,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:21,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:21,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:21,665 INFO L124 PetriNetUnfolderBase]: 865/1456 cut-off events. [2024-11-20 22:04:21,665 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-20 22:04:21,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2776 conditions, 1456 events. 865/1456 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7136 event pairs, 466 based on Foata normal form. 42/1152 useless extension candidates. Maximal degree in co-relation 2746. Up to 947 conditions per place. [2024-11-20 22:04:21,675 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 54 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2024-11-20 22:04:21,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 67 transitions, 294 flow [2024-11-20 22:04:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:21,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-11-20 22:04:21,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646341463414634 [2024-11-20 22:04:21,698 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 114 flow. Second operand 4 states and 109 transitions. [2024-11-20 22:04:21,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 67 transitions, 294 flow [2024-11-20 22:04:21,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 67 transitions, 272 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-20 22:04:21,702 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 121 flow [2024-11-20 22:04:21,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-11-20 22:04:21,703 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-11-20 22:04:21,703 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 121 flow [2024-11-20 22:04:21,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 22:04:21,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:21,704 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 22:04:21,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 22:04:21,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:21,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:21,706 INFO L85 PathProgramCache]: Analyzing trace with hash 290806018, now seen corresponding path program 1 times [2024-11-20 22:04:21,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52491003] [2024-11-20 22:04:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:21,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:21,811 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 22:04:21,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52491003] [2024-11-20 22:04:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52491003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061026996] [2024-11-20 22:04:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:21,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:21,816 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 22:04:21,818 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 22:04:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:21,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:21,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:21,918 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 22:04:21,919 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:21,967 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 22:04:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061026996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:21,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:21,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-20 22:04:21,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328792902] [2024-11-20 22:04:21,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:21,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:04:21,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:04:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:04:21,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:21,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 121 flow. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 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 22:04:21,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:21,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:21,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:22,231 INFO L124 PetriNetUnfolderBase]: 672/1231 cut-off events. [2024-11-20 22:04:22,231 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2024-11-20 22:04:22,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2731 conditions, 1231 events. 672/1231 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6642 event pairs, 466 based on Foata normal form. 3/996 useless extension candidates. Maximal degree in co-relation 2679. Up to 949 conditions per place. [2024-11-20 22:04:22,240 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 27 selfloop transitions, 13 changer transitions 0/50 dead transitions. [2024-11-20 22:04:22,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 231 flow [2024-11-20 22:04:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:04:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:04:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2024-11-20 22:04:22,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-11-20 22:04:22,244 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 121 flow. Second operand 10 states and 170 transitions. [2024-11-20 22:04:22,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 231 flow [2024-11-20 22:04:22,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:22,248 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 192 flow [2024-11-20 22:04:22,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-11-20 22:04:22,249 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-11-20 22:04:22,250 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 192 flow [2024-11-20 22:04:22,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 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 22:04:22,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:22,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:22,259 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 22:04:22,455 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,SelfDestructingSolverStorable3 [2024-11-20 22:04:22,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:22,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1308116497, now seen corresponding path program 1 times [2024-11-20 22:04:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:22,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987704521] [2024-11-20 22:04:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:22,507 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 22:04:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:22,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987704521] [2024-11-20 22:04:22,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987704521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:22,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:22,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:04:22,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946070768] [2024-11-20 22:04:22,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:22,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:22,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:22,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:22,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 22:04:22,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:22,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:22,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:22,787 INFO L124 PetriNetUnfolderBase]: 1384/2224 cut-off events. [2024-11-20 22:04:22,790 INFO L125 PetriNetUnfolderBase]: For 706/778 co-relation queries the response was YES. [2024-11-20 22:04:22,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4988 conditions, 2224 events. 1384/2224 cut-off events. For 706/778 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11400 event pairs, 724 based on Foata normal form. 64/1871 useless extension candidates. Maximal degree in co-relation 4952. Up to 1472 conditions per place. [2024-11-20 22:04:22,808 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 70 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-20 22:04:22,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 444 flow [2024-11-20 22:04:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-20 22:04:22,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-20 22:04:22,811 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 192 flow. Second operand 4 states and 107 transitions. [2024-11-20 22:04:22,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 444 flow [2024-11-20 22:04:22,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 83 transitions, 433 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:22,816 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 210 flow [2024-11-20 22:04:22,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-11-20 22:04:22,818 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2024-11-20 22:04:22,819 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 210 flow [2024-11-20 22:04:22,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 22:04:22,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:22,820 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:22,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 22:04:22,820 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:22,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1490647680, now seen corresponding path program 1 times [2024-11-20 22:04:22,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:22,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145537632] [2024-11-20 22:04:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:22,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:22,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:22,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145537632] [2024-11-20 22:04:22,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145537632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:22,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:22,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:04:22,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453150344] [2024-11-20 22:04:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:22,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 22:04:22,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:22,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:04:22,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:04:22,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-20 22:04:22,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 22:04:22,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:22,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-20 22:04:22,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:23,207 INFO L124 PetriNetUnfolderBase]: 1522/2784 cut-off events. [2024-11-20 22:04:23,207 INFO L125 PetriNetUnfolderBase]: For 1573/1591 co-relation queries the response was YES. [2024-11-20 22:04:23,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6935 conditions, 2784 events. 1522/2784 cut-off events. For 1573/1591 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17293 event pairs, 928 based on Foata normal form. 62/2477 useless extension candidates. Maximal degree in co-relation 6897. Up to 1469 conditions per place. [2024-11-20 22:04:23,227 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 74 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-20 22:04:23,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 90 transitions, 493 flow [2024-11-20 22:04:23,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:04:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 22:04:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2024-11-20 22:04:23,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6536585365853659 [2024-11-20 22:04:23,228 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 210 flow. Second operand 5 states and 134 transitions. [2024-11-20 22:04:23,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 90 transitions, 493 flow [2024-11-20 22:04:23,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 90 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:23,235 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 236 flow [2024-11-20 22:04:23,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-20 22:04:23,235 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2024-11-20 22:04:23,236 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 236 flow [2024-11-20 22:04:23,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 22:04:23,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:23,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:23,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 22:04:23,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:23,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:23,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1316662909, now seen corresponding path program 1 times [2024-11-20 22:04:23,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:23,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718688383] [2024-11-20 22:04:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:23,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:23,301 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 22:04:23,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718688383] [2024-11-20 22:04:23,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718688383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:23,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:23,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:04:23,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82591292] [2024-11-20 22:04:23,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:23,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 22:04:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:04:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:04:23,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:23,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:04:23,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:23,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:23,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:23,600 INFO L124 PetriNetUnfolderBase]: 1838/3004 cut-off events. [2024-11-20 22:04:23,600 INFO L125 PetriNetUnfolderBase]: For 2895/2999 co-relation queries the response was YES. [2024-11-20 22:04:23,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8128 conditions, 3004 events. 1838/3004 cut-off events. For 2895/2999 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 16344 event pairs, 572 based on Foata normal form. 122/2673 useless extension candidates. Maximal degree in co-relation 8088. Up to 1139 conditions per place. [2024-11-20 22:04:23,623 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 74 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2024-11-20 22:04:23,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 92 transitions, 580 flow [2024-11-20 22:04:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:04:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 22:04:23,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-20 22:04:23,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.551219512195122 [2024-11-20 22:04:23,625 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 236 flow. Second operand 5 states and 113 transitions. [2024-11-20 22:04:23,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 92 transitions, 580 flow [2024-11-20 22:04:23,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 92 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:23,631 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 247 flow [2024-11-20 22:04:23,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2024-11-20 22:04:23,631 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-11-20 22:04:23,632 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 247 flow [2024-11-20 22:04:23,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:04:23,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:23,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:23,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 22:04:23,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:23,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2133122337, now seen corresponding path program 1 times [2024-11-20 22:04:23,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:23,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812907971] [2024-11-20 22:04:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:23,706 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 22:04:23,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:23,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812907971] [2024-11-20 22:04:23,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812907971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:23,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:23,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:04:23,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794785749] [2024-11-20 22:04:23,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:23,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 22:04:23,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:23,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:04:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:04:23,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:23,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 247 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:04:23,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:23,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:23,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:24,044 INFO L124 PetriNetUnfolderBase]: 1740/2919 cut-off events. [2024-11-20 22:04:24,044 INFO L125 PetriNetUnfolderBase]: For 2953/3051 co-relation queries the response was YES. [2024-11-20 22:04:24,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8319 conditions, 2919 events. 1740/2919 cut-off events. For 2953/3051 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 16044 event pairs, 1160 based on Foata normal form. 43/2648 useless extension candidates. Maximal degree in co-relation 8278. Up to 1766 conditions per place. [2024-11-20 22:04:24,073 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 65 selfloop transitions, 5 changer transitions 6/85 dead transitions. [2024-11-20 22:04:24,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 85 transitions, 521 flow [2024-11-20 22:04:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:04:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 22:04:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-11-20 22:04:24,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5902439024390244 [2024-11-20 22:04:24,075 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 247 flow. Second operand 5 states and 121 transitions. [2024-11-20 22:04:24,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 85 transitions, 521 flow [2024-11-20 22:04:24,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 85 transitions, 495 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 22:04:24,083 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 254 flow [2024-11-20 22:04:24,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2024-11-20 22:04:24,085 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2024-11-20 22:04:24,085 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 254 flow [2024-11-20 22:04:24,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 22:04:24,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:24,085 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:24,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 22:04:24,085 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:24,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:24,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1859851735, now seen corresponding path program 1 times [2024-11-20 22:04:24,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:24,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192568344] [2024-11-20 22:04:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:24,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:24,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192568344] [2024-11-20 22:04:24,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192568344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:24,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:24,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:04:24,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800445524] [2024-11-20 22:04:24,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:24,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 22:04:24,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:24,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:04:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:04:24,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-20 22:04:24,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:04:24,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:24,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-20 22:04:24,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:24,406 INFO L124 PetriNetUnfolderBase]: 1244/2154 cut-off events. [2024-11-20 22:04:24,407 INFO L125 PetriNetUnfolderBase]: For 2036/2105 co-relation queries the response was YES. [2024-11-20 22:04:24,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5985 conditions, 2154 events. 1244/2154 cut-off events. For 2036/2105 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11612 event pairs, 824 based on Foata normal form. 34/2047 useless extension candidates. Maximal degree in co-relation 5943. Up to 1469 conditions per place. [2024-11-20 22:04:24,419 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 39 selfloop transitions, 2 changer transitions 27/78 dead transitions. [2024-11-20 22:04:24,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 467 flow [2024-11-20 22:04:24,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:04:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 22:04:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-11-20 22:04:24,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6292682926829268 [2024-11-20 22:04:24,420 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 254 flow. Second operand 5 states and 129 transitions. [2024-11-20 22:04:24,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 467 flow [2024-11-20 22:04:24,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 78 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:24,425 INFO L231 Difference]: Finished difference. Result has 71 places, 51 transitions, 224 flow [2024-11-20 22:04:24,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2024-11-20 22:04:24,426 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2024-11-20 22:04:24,426 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 224 flow [2024-11-20 22:04:24,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:04:24,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:24,426 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:24,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 22:04:24,426 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:24,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash 176446089, now seen corresponding path program 1 times [2024-11-20 22:04:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902744935] [2024-11-20 22:04:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:24,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902744935] [2024-11-20 22:04:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902744935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846076393] [2024-11-20 22:04:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:24,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:24,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:24,486 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) [2024-11-20 22:04:24,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 22:04:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:24,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:24,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:24,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:04:24,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846076393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:24,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:04:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 22:04:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912801915] [2024-11-20 22:04:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:24,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:04:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:04:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:04:24,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:24,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:24,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:24,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:24,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:24,899 INFO L124 PetriNetUnfolderBase]: 1215/1924 cut-off events. [2024-11-20 22:04:24,899 INFO L125 PetriNetUnfolderBase]: For 1643/1753 co-relation queries the response was YES. [2024-11-20 22:04:24,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5551 conditions, 1924 events. 1215/1924 cut-off events. For 1643/1753 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9373 event pairs, 228 based on Foata normal form. 62/1783 useless extension candidates. Maximal degree in co-relation 5521. Up to 537 conditions per place. [2024-11-20 22:04:24,911 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 99 selfloop transitions, 7 changer transitions 0/114 dead transitions. [2024-11-20 22:04:24,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 114 transitions, 676 flow [2024-11-20 22:04:24,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:04:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:04:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2024-11-20 22:04:24,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6463414634146342 [2024-11-20 22:04:24,913 INFO L175 Difference]: Start difference. First operand has 71 places, 51 transitions, 224 flow. Second operand 6 states and 159 transitions. [2024-11-20 22:04:24,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 114 transitions, 676 flow [2024-11-20 22:04:24,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 614 flow, removed 29 selfloop flow, removed 8 redundant places. [2024-11-20 22:04:24,924 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 212 flow [2024-11-20 22:04:24,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-11-20 22:04:24,925 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-11-20 22:04:24,926 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 212 flow [2024-11-20 22:04:24,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:24,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:24,926 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:24,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 22:04:25,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:25,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:25,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:25,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1174861893, now seen corresponding path program 1 times [2024-11-20 22:04:25,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:25,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178556057] [2024-11-20 22:04:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:25,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:25,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178556057] [2024-11-20 22:04:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178556057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562909535] [2024-11-20 22:04:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:25,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:25,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 22:04:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:25,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:25,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:25,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:25,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562909535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:25,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-20 22:04:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160461814] [2024-11-20 22:04:25,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:25,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:04:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:04:25,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:04:25,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:25,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 212 flow. Second operand has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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 22:04:25,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:25,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:25,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:25,886 INFO L124 PetriNetUnfolderBase]: 2337/3687 cut-off events. [2024-11-20 22:04:25,886 INFO L125 PetriNetUnfolderBase]: For 2786/2936 co-relation queries the response was YES. [2024-11-20 22:04:25,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10338 conditions, 3687 events. 2337/3687 cut-off events. For 2786/2936 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 18221 event pairs, 536 based on Foata normal form. 186/3321 useless extension candidates. Maximal degree in co-relation 10307. Up to 1439 conditions per place. [2024-11-20 22:04:25,906 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 166 selfloop transitions, 13 changer transitions 0/187 dead transitions. [2024-11-20 22:04:25,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 187 transitions, 1032 flow [2024-11-20 22:04:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:04:25,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:04:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-20 22:04:25,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6682926829268293 [2024-11-20 22:04:25,908 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 212 flow. Second operand 10 states and 274 transitions. [2024-11-20 22:04:25,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 187 transitions, 1032 flow [2024-11-20 22:04:25,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 187 transitions, 986 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-20 22:04:25,915 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 264 flow [2024-11-20 22:04:25,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=264, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2024-11-20 22:04:25,916 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-11-20 22:04:25,916 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 264 flow [2024-11-20 22:04:25,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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 22:04:25,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:25,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:25,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 22:04:26,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:26,120 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:26,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2078811736, now seen corresponding path program 1 times [2024-11-20 22:04:26,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:26,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019204698] [2024-11-20 22:04:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:26,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019204698] [2024-11-20 22:04:26,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019204698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748048745] [2024-11-20 22:04:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:26,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:26,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:26,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:26,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 22:04:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:26,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 22:04:26,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:26,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748048745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:26,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:26,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 17 [2024-11-20 22:04:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028673246] [2024-11-20 22:04:26,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:26,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 22:04:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 22:04:26,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-20 22:04:26,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-20 22:04:26,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 264 flow. Second operand has 19 states, 19 states have (on average 12.894736842105264) internal successors, (245), 19 states have internal predecessors, (245), 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 22:04:26,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:26,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-20 22:04:26,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:28,109 INFO L124 PetriNetUnfolderBase]: 8468/13279 cut-off events. [2024-11-20 22:04:28,110 INFO L125 PetriNetUnfolderBase]: For 14299/14778 co-relation queries the response was YES. [2024-11-20 22:04:28,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36863 conditions, 13279 events. 8468/13279 cut-off events. For 14299/14778 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 82530 event pairs, 4404 based on Foata normal form. 0/11659 useless extension candidates. Maximal degree in co-relation 36829. Up to 3698 conditions per place. [2024-11-20 22:04:28,205 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 207 selfloop transitions, 20 changer transitions 3/237 dead transitions. [2024-11-20 22:04:28,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 237 transitions, 1544 flow [2024-11-20 22:04:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 22:04:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 22:04:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 266 transitions. [2024-11-20 22:04:28,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49906191369606 [2024-11-20 22:04:28,207 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 264 flow. Second operand 13 states and 266 transitions. [2024-11-20 22:04:28,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 237 transitions, 1544 flow [2024-11-20 22:04:28,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 237 transitions, 1467 flow, removed 21 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:28,311 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 338 flow [2024-11-20 22:04:28,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=338, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2024-11-20 22:04:28,315 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 40 predicate places. [2024-11-20 22:04:28,315 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 338 flow [2024-11-20 22:04:28,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.894736842105264) internal successors, (245), 19 states have internal predecessors, (245), 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 22:04:28,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:28,315 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:28,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 22:04:28,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-20 22:04:28,523 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:28,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:28,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1805541134, now seen corresponding path program 1 times [2024-11-20 22:04:28,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:28,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468947035] [2024-11-20 22:04:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468947035] [2024-11-20 22:04:28,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468947035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711784036] [2024-11-20 22:04:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:28,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:28,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:28,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:28,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 22:04:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:28,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 22:04:28,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:28,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:28,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711784036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:28,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:28,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 20 [2024-11-20 22:04:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796327326] [2024-11-20 22:04:28,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:28,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 22:04:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 22:04:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-20 22:04:28,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-20 22:04:28,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 338 flow. Second operand has 20 states, 20 states have (on average 12.75) internal successors, (255), 20 states have internal predecessors, (255), 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 22:04:28,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:28,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-20 22:04:28,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:30,770 INFO L124 PetriNetUnfolderBase]: 8503/12873 cut-off events. [2024-11-20 22:04:30,771 INFO L125 PetriNetUnfolderBase]: For 14663/15193 co-relation queries the response was YES. [2024-11-20 22:04:30,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39839 conditions, 12873 events. 8503/12873 cut-off events. For 14663/15193 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 76880 event pairs, 1464 based on Foata normal form. 298/11922 useless extension candidates. Maximal degree in co-relation 39796. Up to 2270 conditions per place. [2024-11-20 22:04:30,867 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 254 selfloop transitions, 23 changer transitions 25/308 dead transitions. [2024-11-20 22:04:30,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 308 transitions, 2065 flow [2024-11-20 22:04:30,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 22:04:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 22:04:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 319 transitions. [2024-11-20 22:04:30,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186991869918699 [2024-11-20 22:04:30,869 INFO L175 Difference]: Start difference. First operand has 82 places, 67 transitions, 338 flow. Second operand 15 states and 319 transitions. [2024-11-20 22:04:30,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 308 transitions, 2065 flow [2024-11-20 22:04:30,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 308 transitions, 2056 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 22:04:30,929 INFO L231 Difference]: Finished difference. Result has 91 places, 71 transitions, 393 flow [2024-11-20 22:04:30,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=393, PETRI_PLACES=91, PETRI_TRANSITIONS=71} [2024-11-20 22:04:30,931 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 49 predicate places. [2024-11-20 22:04:30,931 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 71 transitions, 393 flow [2024-11-20 22:04:30,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.75) internal successors, (255), 20 states have internal predecessors, (255), 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 22:04:30,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:30,932 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-20 22:04:30,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 22:04:31,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:31,137 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:31,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1246613739, now seen corresponding path program 2 times [2024-11-20 22:04:31,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:31,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415336821] [2024-11-20 22:04:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:31,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415336821] [2024-11-20 22:04:31,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415336821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:31,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118132167] [2024-11-20 22:04:31,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:04:31,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:31,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:31,292 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:31,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 22:04:31,343 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:04:31,344 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:04:31,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:04:31,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:04:31,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:04:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118132167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:31,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-20 22:04:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604735554] [2024-11-20 22:04:31,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:31,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 22:04:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 22:04:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 22:04:31,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:31,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 71 transitions, 393 flow. Second operand has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 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 22:04:31,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:31,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:31,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:32,630 INFO L124 PetriNetUnfolderBase]: 7667/12467 cut-off events. [2024-11-20 22:04:32,631 INFO L125 PetriNetUnfolderBase]: For 19731/19825 co-relation queries the response was YES. [2024-11-20 22:04:32,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40847 conditions, 12467 events. 7667/12467 cut-off events. For 19731/19825 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 80716 event pairs, 5465 based on Foata normal form. 2/11579 useless extension candidates. Maximal degree in co-relation 40792. Up to 10472 conditions per place. [2024-11-20 22:04:32,703 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 48 selfloop transitions, 18 changer transitions 0/73 dead transitions. [2024-11-20 22:04:32,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 73 transitions, 539 flow [2024-11-20 22:04:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 22:04:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 22:04:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 222 transitions. [2024-11-20 22:04:32,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3867595818815331 [2024-11-20 22:04:32,705 INFO L175 Difference]: Start difference. First operand has 91 places, 71 transitions, 393 flow. Second operand 14 states and 222 transitions. [2024-11-20 22:04:32,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 73 transitions, 539 flow [2024-11-20 22:04:32,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 73 transitions, 467 flow, removed 5 selfloop flow, removed 13 redundant places. [2024-11-20 22:04:32,755 INFO L231 Difference]: Finished difference. Result has 90 places, 73 transitions, 371 flow [2024-11-20 22:04:32,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=371, PETRI_PLACES=90, PETRI_TRANSITIONS=73} [2024-11-20 22:04:32,757 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 48 predicate places. [2024-11-20 22:04:32,757 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 73 transitions, 371 flow [2024-11-20 22:04:32,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 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 22:04:32,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:32,757 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:32,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 22:04:32,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:32,958 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:32,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 215263564, now seen corresponding path program 1 times [2024-11-20 22:04:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:32,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881622872] [2024-11-20 22:04:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:04:33,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881622872] [2024-11-20 22:04:33,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881622872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481453070] [2024-11-20 22:04:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:33,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:33,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:33,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 22:04:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:33,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:33,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:04:33,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:04:33,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481453070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:33,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:33,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-20 22:04:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546483448] [2024-11-20 22:04:33,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:33,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:04:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:04:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:04:33,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:33,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 73 transitions, 371 flow. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:33,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:33,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:33,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:34,734 INFO L124 PetriNetUnfolderBase]: 14420/21866 cut-off events. [2024-11-20 22:04:34,734 INFO L125 PetriNetUnfolderBase]: For 27184/28102 co-relation queries the response was YES. [2024-11-20 22:04:34,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65545 conditions, 21866 events. 14420/21866 cut-off events. For 27184/28102 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 135223 event pairs, 4040 based on Foata normal form. 894/20468 useless extension candidates. Maximal degree in co-relation 60014. Up to 8864 conditions per place. [2024-11-20 22:04:34,892 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 294 selfloop transitions, 18 changer transitions 0/318 dead transitions. [2024-11-20 22:04:34,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 318 transitions, 2158 flow [2024-11-20 22:04:34,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:04:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:04:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 266 transitions. [2024-11-20 22:04:34,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6487804878048781 [2024-11-20 22:04:34,894 INFO L175 Difference]: Start difference. First operand has 90 places, 73 transitions, 371 flow. Second operand 10 states and 266 transitions. [2024-11-20 22:04:34,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 318 transitions, 2158 flow [2024-11-20 22:04:34,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 318 transitions, 2092 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-20 22:04:34,977 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 392 flow [2024-11-20 22:04:34,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=392, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-11-20 22:04:34,977 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 48 predicate places. [2024-11-20 22:04:34,978 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 392 flow [2024-11-20 22:04:34,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:34,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:34,978 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:34,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 22:04:35,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 22:04:35,179 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:35,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 395542088, now seen corresponding path program 2 times [2024-11-20 22:04:35,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:35,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122385737] [2024-11-20 22:04:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:35,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:35,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:35,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122385737] [2024-11-20 22:04:35,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122385737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:35,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906478969] [2024-11-20 22:04:35,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:04:35,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:35,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:35,399 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:35,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 22:04:35,466 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:04:35,466 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:04:35,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:04:35,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 22:04:35,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:04:35,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906478969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:35,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:04:35,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 11 [2024-11-20 22:04:35,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990268330] [2024-11-20 22:04:35,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:35,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:35,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:35,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-20 22:04:35,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-20 22:04:35,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 392 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:04:35,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:35,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-20 22:04:35,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:36,977 INFO L124 PetriNetUnfolderBase]: 13583/21152 cut-off events. [2024-11-20 22:04:36,977 INFO L125 PetriNetUnfolderBase]: For 34107/34161 co-relation queries the response was YES. [2024-11-20 22:04:37,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69457 conditions, 21152 events. 13583/21152 cut-off events. For 34107/34161 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 136094 event pairs, 6770 based on Foata normal form. 0/19817 useless extension candidates. Maximal degree in co-relation 64522. Up to 13769 conditions per place. [2024-11-20 22:04:37,102 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 106 selfloop transitions, 7 changer transitions 2/121 dead transitions. [2024-11-20 22:04:37,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 826 flow [2024-11-20 22:04:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-11-20 22:04:37,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-11-20 22:04:37,104 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 392 flow. Second operand 4 states and 88 transitions. [2024-11-20 22:04:37,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 121 transitions, 826 flow [2024-11-20 22:04:37,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 121 transitions, 794 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:37,194 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 381 flow [2024-11-20 22:04:37,194 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2024-11-20 22:04:37,195 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 48 predicate places. [2024-11-20 22:04:37,195 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 381 flow [2024-11-20 22:04:37,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:04:37,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:37,196 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:37,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 22:04:37,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 22:04:37,397 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:37,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:37,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1199886810, now seen corresponding path program 2 times [2024-11-20 22:04:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:37,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257791755] [2024-11-20 22:04:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 22:04:37,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:37,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257791755] [2024-11-20 22:04:37,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257791755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:37,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757378316] [2024-11-20 22:04:37,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:04:37,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:37,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:37,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:37,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 22:04:37,622 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:04:37,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:04:37,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:04:37,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-20 22:04:37,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-20 22:04:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757378316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:37,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 2, 2] total 10 [2024-11-20 22:04:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229852651] [2024-11-20 22:04:37,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:37,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 22:04:37,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 22:04:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 22:04:37,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-20 22:04:37,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 381 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 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 22:04:37,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:37,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-20 22:04:37,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:39,569 INFO L124 PetriNetUnfolderBase]: 12495/19426 cut-off events. [2024-11-20 22:04:39,569 INFO L125 PetriNetUnfolderBase]: For 36154/36154 co-relation queries the response was YES. [2024-11-20 22:04:39,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63403 conditions, 19426 events. 12495/19426 cut-off events. For 36154/36154 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 121428 event pairs, 4868 based on Foata normal form. 368/19175 useless extension candidates. Maximal degree in co-relation 59157. Up to 9916 conditions per place. [2024-11-20 22:04:39,648 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 69 selfloop transitions, 14 changer transitions 74/162 dead transitions. [2024-11-20 22:04:39,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 162 transitions, 1055 flow [2024-11-20 22:04:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 22:04:39,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 22:04:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 223 transitions. [2024-11-20 22:04:39,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49445676274944567 [2024-11-20 22:04:39,650 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 381 flow. Second operand 11 states and 223 transitions. [2024-11-20 22:04:39,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 162 transitions, 1055 flow [2024-11-20 22:04:39,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 162 transitions, 1009 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-20 22:04:39,796 INFO L231 Difference]: Finished difference. Result has 94 places, 64 transitions, 309 flow [2024-11-20 22:04:39,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=309, PETRI_PLACES=94, PETRI_TRANSITIONS=64} [2024-11-20 22:04:39,797 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 52 predicate places. [2024-11-20 22:04:39,797 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 64 transitions, 309 flow [2024-11-20 22:04:39,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 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 22:04:39,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:39,797 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:39,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 22:04:39,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 22:04:39,999 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-20 22:04:39,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash 556888454, now seen corresponding path program 2 times [2024-11-20 22:04:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760482322] [2024-11-20 22:04:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:40,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:40,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:40,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760482322] [2024-11-20 22:04:40,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760482322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:40,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211162204] [2024-11-20 22:04:40,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:04:40,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:40,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:40,415 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:40,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 22:04:40,487 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:04:40,488 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:04:40,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:40,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-20 22:04:40,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-20 22:04:40,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211162204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:40,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:40,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 3, 3] total 20 [2024-11-20 22:04:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732520505] [2024-11-20 22:04:40,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:40,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 22:04:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:40,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 22:04:40,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-20 22:04:40,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-20 22:04:40,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 64 transitions, 309 flow. Second operand has 21 states, 21 states have (on average 12.904761904761905) internal successors, (271), 21 states have internal predecessors, (271), 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 22:04:40,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:40,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-20 22:04:40,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:41,933 INFO L124 PetriNetUnfolderBase]: 6597/10368 cut-off events. [2024-11-20 22:04:41,933 INFO L125 PetriNetUnfolderBase]: For 18728/18728 co-relation queries the response was YES. [2024-11-20 22:04:41,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33692 conditions, 10368 events. 6597/10368 cut-off events. For 18728/18728 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 60956 event pairs, 1695 based on Foata normal form. 298/10240 useless extension candidates. Maximal degree in co-relation 32882. Up to 2820 conditions per place. [2024-11-20 22:04:41,958 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 0 selfloop transitions, 0 changer transitions 253/253 dead transitions. [2024-11-20 22:04:41,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 253 transitions, 1807 flow [2024-11-20 22:04:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 22:04:41,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 22:04:41,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 299 transitions. [2024-11-20 22:04:41,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4557926829268293 [2024-11-20 22:04:41,961 INFO L175 Difference]: Start difference. First operand has 94 places, 64 transitions, 309 flow. Second operand 16 states and 299 transitions. [2024-11-20 22:04:41,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 253 transitions, 1807 flow [2024-11-20 22:04:42,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 253 transitions, 1517 flow, removed 49 selfloop flow, removed 16 redundant places. [2024-11-20 22:04:42,019 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-11-20 22:04:42,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=238, 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=16, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-11-20 22:04:42,020 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 37 predicate places. [2024-11-20 22:04:42,020 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-11-20 22:04:42,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.904761904761905) internal successors, (271), 21 states have internal predecessors, (271), 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 22:04:42,023 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 17 remaining) [2024-11-20 22:04:42,023 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-20 22:04:42,023 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-20 22:04:42,023 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-20 22:04:42,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-20 22:04:42,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-20 22:04:42,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-20 22:04:42,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-20 22:04:42,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 17 remaining) [2024-11-20 22:04:42,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 17 remaining) [2024-11-20 22:04:42,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 17 remaining) [2024-11-20 22:04:42,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-20 22:04:42,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-20 22:04:42,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-20 22:04:42,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-20 22:04:42,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-20 22:04:42,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-20 22:04:42,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 22:04:42,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 22:04:42,227 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:42,232 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 22:04:42,232 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 22:04:42,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:04:42 BasicIcfg [2024-11-20 22:04:42,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 22:04:42,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:04:42,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:04:42,238 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:04:42,238 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:19" (3/4) ... [2024-11-20 22:04:42,240 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 22:04:42,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 22:04:42,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 22:04:42,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-20 22:04:42,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-11-20 22:04:42,250 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-20 22:04:42,250 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-20 22:04:42,251 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 22:04:42,339 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:04:42,342 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 22:04:42,342 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:04:42,342 INFO L158 Benchmark]: Toolchain (without parser) took 23561.31ms. Allocated memory was 184.5MB in the beginning and 9.0GB in the end (delta: 8.8GB). Free memory was 153.3MB in the beginning and 8.2GB in the end (delta: -8.0GB). Peak memory consumption was 844.2MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,343 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 130.0MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:04:42,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.63ms. Allocated memory is still 184.5MB. Free memory was 156.3MB in the beginning and 142.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.64ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 141.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,343 INFO L158 Benchmark]: Boogie Preprocessor took 79.42ms. Allocated memory is still 184.5MB. Free memory was 141.6MB in the beginning and 138.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,344 INFO L158 Benchmark]: RCFGBuilder took 622.11ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 101.7MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,344 INFO L158 Benchmark]: TraceAbstraction took 22396.08ms. Allocated memory was 184.5MB in the beginning and 9.0GB in the end (delta: 8.8GB). Free memory was 101.7MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 996.9MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,344 INFO L158 Benchmark]: Witness Printer took 104.52ms. Allocated memory is still 9.0GB. Free memory was 8.2GB in the beginning and 8.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:04:42,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 130.0MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.63ms. Allocated memory is still 184.5MB. Free memory was 156.3MB in the beginning and 142.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.64ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 141.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.42ms. Allocated memory is still 184.5MB. Free memory was 141.6MB in the beginning and 138.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.11ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 101.7MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 22396.08ms. Allocated memory was 184.5MB in the beginning and 9.0GB in the end (delta: 8.8GB). Free memory was 101.7MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 996.9MB. Max. memory is 16.1GB. * Witness Printer took 104.52ms. Allocated memory is still 9.0GB. Free memory was 8.2GB in the beginning and 8.2GB 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: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: 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, 62 locations, 17 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: 22.2s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1562 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1499 mSDsluCounter, 998 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5685 IncrementalHoareTripleChecker+Invalid, 5728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 59 mSDtfsCounter, 5685 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 451 GetRequests, 232 SyntacticMatches, 3 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=393occurred in iteration=13, InterpolantAutomatonStates: 147, 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, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 396 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 1644 SizeOfPredicates, 38 NumberOfNonLiveVariables, 1143 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 238/383 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 22:04:42,366 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