./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-array-sum.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 e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:26:09,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:26:09,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:26:09,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:26:09,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:26:09,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:26:09,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:26:09,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:26:09,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:26:09,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:26:09,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:26:09,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:26:09,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:26:09,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:26:09,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:26:09,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:26:09,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:26:09,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:26:09,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:26:09,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:26:09,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:26:09,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:26:09,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:26:09,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:26:09,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:26:09,166 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:26:09,166 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:26:09,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:26:09,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:26:09,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:26:09,168 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:26:09,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:26:09,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:26:09,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:26:09,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:26:09,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:26:09,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:26:09,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:26:09,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:26:09,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:26:09,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:26:09,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:26:09,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:26:09,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:26:09,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 [2024-11-10 22:26:09,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:26:09,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:26:09,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:26:09,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:26:09,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:26:09,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2024-11-10 22:26:10,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:26:11,067 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:26:11,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2024-11-10 22:26:11,076 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2271a4a59/5c3c1a9994034da5820326713aeb7ec5/FLAGbf3469d9b [2024-11-10 22:26:11,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2271a4a59/5c3c1a9994034da5820326713aeb7ec5 [2024-11-10 22:26:11,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:26:11,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:26:11,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:26:11,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:26:11,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:26:11,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c548549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11, skipping insertion in model container [2024-11-10 22:26:11,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:26:11,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:26:11,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:26:11,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:26:11,749 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:26:11,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11 WrapperNode [2024-11-10 22:26:11,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:26:11,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:26:11,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:26:11,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:26:11,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,805 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 355 [2024-11-10 22:26:11,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:26:11,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:26:11,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:26:11,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:26:11,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,836 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-10 22:26:11,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:26:11,859 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:26:11,859 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:26:11,860 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:26:11,860 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (1/1) ... [2024-11-10 22:26:11,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:26:11,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:11,901 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) [2024-11-10 22:26:11,908 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 [2024-11-10 22:26:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:26:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:26:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:26:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:26:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:26:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:26:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:26:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:26:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:26:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:26:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:26:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:26:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:26:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:26:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:26:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:26:11,962 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:26:12,105 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:26:12,107 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:26:12,692 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:26:12,692 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:26:13,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:26:13,054 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:26:13,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:26:13 BoogieIcfgContainer [2024-11-10 22:26:13,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:26:13,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:26:13,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:26:13,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:26:13,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:26:11" (1/3) ... [2024-11-10 22:26:13,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5324bc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:26:13, skipping insertion in model container [2024-11-10 22:26:13,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:26:11" (2/3) ... [2024-11-10 22:26:13,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5324bc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:26:13, skipping insertion in model container [2024-11-10 22:26:13,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:26:13" (3/3) ... [2024-11-10 22:26:13,065 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2024-11-10 22:26:13,082 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:26:13,082 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-11-10 22:26:13,083 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:26:13,183 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:26:13,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 174 transitions, 369 flow [2024-11-10 22:26:13,289 INFO L124 PetriNetUnfolderBase]: 22/171 cut-off events. [2024-11-10 22:26:13,289 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:26:13,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 171 events. 22/171 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 683 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2024-11-10 22:26:13,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 174 transitions, 369 flow [2024-11-10 22:26:13,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 169 transitions, 353 flow [2024-11-10 22:26:13,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:26:13,338 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;@718684bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:26:13,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-10 22:26:13,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:26:13,343 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:26:13,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:26:13,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:13,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:26:13,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:13,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 32842368, now seen corresponding path program 1 times [2024-11-10 22:26:13,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:13,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396188126] [2024-11-10 22:26:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:13,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:13,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396188126] [2024-11-10 22:26:13,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396188126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:13,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:13,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:26:13,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157734532] [2024-11-10 22:26:13,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:13,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:13,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:13,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:13,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 174 [2024-11-10 22:26:13,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 169 transitions, 353 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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) [2024-11-10 22:26:13,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:13,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 174 [2024-11-10 22:26:13,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:17,716 INFO L124 PetriNetUnfolderBase]: 22329/38370 cut-off events. [2024-11-10 22:26:17,717 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-10 22:26:17,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68371 conditions, 38370 events. 22329/38370 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 335850 event pairs, 15354 based on Foata normal form. 1389/33690 useless extension candidates. Maximal degree in co-relation 66087. Up to 29354 conditions per place. [2024-11-10 22:26:18,040 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 64 selfloop transitions, 7 changer transitions 0/170 dead transitions. [2024-11-10 22:26:18,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 170 transitions, 497 flow [2024-11-10 22:26:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-10 22:26:18,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040229885057471 [2024-11-10 22:26:18,059 INFO L175 Difference]: Start difference. First operand has 157 places, 169 transitions, 353 flow. Second operand 4 states and 490 transitions. [2024-11-10 22:26:18,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 170 transitions, 497 flow [2024-11-10 22:26:18,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 170 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:26:18,072 INFO L231 Difference]: Finished difference. Result has 158 places, 170 transitions, 394 flow [2024-11-10 22:26:18,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=158, PETRI_TRANSITIONS=170} [2024-11-10 22:26:18,079 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 1 predicate places. [2024-11-10 22:26:18,079 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 394 flow [2024-11-10 22:26:18,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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) [2024-11-10 22:26:18,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:18,080 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:26:18,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:26:18,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:18,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:18,082 INFO L85 PathProgramCache]: Analyzing trace with hash -412524192, now seen corresponding path program 1 times [2024-11-10 22:26:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384392021] [2024-11-10 22:26:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:18,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:18,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:18,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384392021] [2024-11-10 22:26:18,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384392021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:18,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118480292] [2024-11-10 22:26:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:18,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:18,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:18,348 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) [2024-11-10 22:26:18,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:26:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:18,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:26:18,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:18,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:26:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118480292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:18,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:26:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:26:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111005588] [2024-11-10 22:26:18,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:18,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:26:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:26:18,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:26:18,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 174 [2024-11-10 22:26:18,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 170 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 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) [2024-11-10 22:26:18,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:18,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 174 [2024-11-10 22:26:18,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:21,713 INFO L124 PetriNetUnfolderBase]: 22329/38368 cut-off events. [2024-11-10 22:26:21,713 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-10 22:26:21,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68102 conditions, 38368 events. 22329/38368 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 336061 event pairs, 15354 based on Foata normal form. 2/32301 useless extension candidates. Maximal degree in co-relation 68048. Up to 29344 conditions per place. [2024-11-10 22:26:21,964 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 57 selfloop transitions, 12 changer transitions 0/168 dead transitions. [2024-11-10 22:26:21,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 168 transitions, 524 flow [2024-11-10 22:26:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:26:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:26:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 683 transitions. [2024-11-10 22:26:21,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6542145593869731 [2024-11-10 22:26:21,970 INFO L175 Difference]: Start difference. First operand has 158 places, 170 transitions, 394 flow. Second operand 6 states and 683 transitions. [2024-11-10 22:26:21,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 168 transitions, 524 flow [2024-11-10 22:26:21,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 168 transitions, 524 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:21,978 INFO L231 Difference]: Finished difference. Result has 161 places, 168 transitions, 410 flow [2024-11-10 22:26:21,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=161, PETRI_TRANSITIONS=168} [2024-11-10 22:26:21,979 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 4 predicate places. [2024-11-10 22:26:21,981 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 168 transitions, 410 flow [2024-11-10 22:26:21,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 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) [2024-11-10 22:26:21,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:21,982 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:26:22,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:26:22,186 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 [2024-11-10 22:26:22,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:22,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:22,189 INFO L85 PathProgramCache]: Analyzing trace with hash 96652911, now seen corresponding path program 1 times [2024-11-10 22:26:22,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:22,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779105915] [2024-11-10 22:26:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:22,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:22,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:22,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779105915] [2024-11-10 22:26:22,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779105915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:22,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555007108] [2024-11-10 22:26:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:22,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:22,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:22,304 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) [2024-11-10 22:26:22,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:26:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:22,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:26:22,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:22,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555007108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:22,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:26:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035002949] [2024-11-10 22:26:22,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:22,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:26:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:26:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:26:22,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 174 [2024-11-10 22:26:22,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 168 transitions, 410 flow. Second operand has 12 states, 12 states have (on average 103.08333333333333) internal successors, (1237), 12 states have internal predecessors, (1237), 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) [2024-11-10 22:26:22,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:22,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 174 [2024-11-10 22:26:22,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:25,344 INFO L124 PetriNetUnfolderBase]: 22335/38404 cut-off events. [2024-11-10 22:26:25,345 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2024-11-10 22:26:25,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68208 conditions, 38404 events. 22335/38404 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 336120 event pairs, 15354 based on Foata normal form. 6/32343 useless extension candidates. Maximal degree in co-relation 68050. Up to 29355 conditions per place. [2024-11-10 22:26:25,811 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 62 selfloop transitions, 25 changer transitions 0/186 dead transitions. [2024-11-10 22:26:25,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 186 transitions, 698 flow [2024-11-10 22:26:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:26:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:26:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1113 transitions. [2024-11-10 22:26:25,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6396551724137931 [2024-11-10 22:26:25,815 INFO L175 Difference]: Start difference. First operand has 161 places, 168 transitions, 410 flow. Second operand 10 states and 1113 transitions. [2024-11-10 22:26:25,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 186 transitions, 698 flow [2024-11-10 22:26:25,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 186 transitions, 640 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-10 22:26:25,826 INFO L231 Difference]: Finished difference. Result has 168 places, 186 transitions, 550 flow [2024-11-10 22:26:25,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=550, PETRI_PLACES=168, PETRI_TRANSITIONS=186} [2024-11-10 22:26:25,828 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 11 predicate places. [2024-11-10 22:26:25,828 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 186 transitions, 550 flow [2024-11-10 22:26:25,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 103.08333333333333) internal successors, (1237), 12 states have internal predecessors, (1237), 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) [2024-11-10 22:26:25,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:25,830 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:25,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:26:26,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 22:26:26,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:26,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1926670877, now seen corresponding path program 1 times [2024-11-10 22:26:26,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:26,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584513074] [2024-11-10 22:26:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584513074] [2024-11-10 22:26:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584513074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:26,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443892378] [2024-11-10 22:26:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:26,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:26,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:26,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 174 [2024-11-10 22:26:26,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 186 transitions, 550 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2024-11-10 22:26:26,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:26,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 174 [2024-11-10 22:26:26,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:31,316 INFO L124 PetriNetUnfolderBase]: 46369/76574 cut-off events. [2024-11-10 22:26:31,316 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-10 22:26:31,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138675 conditions, 76574 events. 46369/76574 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 2269. Compared 695707 event pairs, 13292 based on Foata normal form. 2184/68217 useless extension candidates. Maximal degree in co-relation 138604. Up to 26836 conditions per place. [2024-11-10 22:26:31,746 INFO L140 encePairwiseOnDemand]: 159/174 looper letters, 167 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-11-10 22:26:31,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 266 transitions, 1070 flow [2024-11-10 22:26:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 535 transitions. [2024-11-10 22:26:31,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686781609195402 [2024-11-10 22:26:31,749 INFO L175 Difference]: Start difference. First operand has 168 places, 186 transitions, 550 flow. Second operand 4 states and 535 transitions. [2024-11-10 22:26:31,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 266 transitions, 1070 flow [2024-11-10 22:26:31,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 266 transitions, 1046 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-10 22:26:31,758 INFO L231 Difference]: Finished difference. Result has 170 places, 190 transitions, 592 flow [2024-11-10 22:26:31,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=592, PETRI_PLACES=170, PETRI_TRANSITIONS=190} [2024-11-10 22:26:31,761 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 13 predicate places. [2024-11-10 22:26:31,761 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 190 transitions, 592 flow [2024-11-10 22:26:31,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2024-11-10 22:26:31,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:31,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:31,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:26:31,763 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:31,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash -402743916, now seen corresponding path program 1 times [2024-11-10 22:26:31,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802021328] [2024-11-10 22:26:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:31,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:31,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802021328] [2024-11-10 22:26:31,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802021328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:31,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:31,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:31,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597240243] [2024-11-10 22:26:31,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:31,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:31,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:31,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:31,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:31,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 174 [2024-11-10 22:26:31,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 190 transitions, 592 flow. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2024-11-10 22:26:31,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:31,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 174 [2024-11-10 22:26:31,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:35,986 INFO L124 PetriNetUnfolderBase]: 28779/52907 cut-off events. [2024-11-10 22:26:35,986 INFO L125 PetriNetUnfolderBase]: For 11745/13663 co-relation queries the response was YES. [2024-11-10 22:26:36,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100699 conditions, 52907 events. 28779/52907 cut-off events. For 11745/13663 co-relation queries the response was YES. Maximal size of possible extension queue 1632. Compared 518841 event pairs, 20348 based on Foata normal form. 965/45635 useless extension candidates. Maximal degree in co-relation 100598. Up to 38000 conditions per place. [2024-11-10 22:26:36,267 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 92 selfloop transitions, 9 changer transitions 3/203 dead transitions. [2024-11-10 22:26:36,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 203 transitions, 871 flow [2024-11-10 22:26:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:26:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:26:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 598 transitions. [2024-11-10 22:26:36,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6873563218390805 [2024-11-10 22:26:36,269 INFO L175 Difference]: Start difference. First operand has 170 places, 190 transitions, 592 flow. Second operand 5 states and 598 transitions. [2024-11-10 22:26:36,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 203 transitions, 871 flow [2024-11-10 22:26:36,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 203 transitions, 871 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:36,482 INFO L231 Difference]: Finished difference. Result has 176 places, 191 transitions, 635 flow [2024-11-10 22:26:36,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=635, PETRI_PLACES=176, PETRI_TRANSITIONS=191} [2024-11-10 22:26:36,482 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 19 predicate places. [2024-11-10 22:26:36,483 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 191 transitions, 635 flow [2024-11-10 22:26:36,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2024-11-10 22:26:36,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:36,483 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:26:36,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:26:36,484 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:36,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash 707282383, now seen corresponding path program 2 times [2024-11-10 22:26:36,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:36,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627351755] [2024-11-10 22:26:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:36,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:36,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:36,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627351755] [2024-11-10 22:26:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627351755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:36,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718762683] [2024-11-10 22:26:36,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:26:36,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:36,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:36,645 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) [2024-11-10 22:26:36,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:26:36,715 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:26:36,715 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:26:36,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:26:36,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:26:36,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:26:36,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718762683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:36,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:36,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-10 22:26:36,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011733405] [2024-11-10 22:26:36,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:36,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:26:36,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:36,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:26:36,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:26:36,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2024-11-10 22:26:36,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 191 transitions, 635 flow. Second operand has 14 states, 14 states have (on average 101.14285714285714) internal successors, (1416), 14 states have internal predecessors, (1416), 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) [2024-11-10 22:26:36,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:36,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2024-11-10 22:26:36,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:41,390 INFO L124 PetriNetUnfolderBase]: 28780/52922 cut-off events. [2024-11-10 22:26:41,390 INFO L125 PetriNetUnfolderBase]: For 11861/13779 co-relation queries the response was YES. [2024-11-10 22:26:41,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100777 conditions, 52922 events. 28780/52922 cut-off events. For 11861/13779 co-relation queries the response was YES. Maximal size of possible extension queue 1632. Compared 519002 event pairs, 20348 based on Foata normal form. 964/45649 useless extension candidates. Maximal degree in co-relation 100620. Up to 37985 conditions per place. [2024-11-10 22:26:42,008 INFO L140 encePairwiseOnDemand]: 164/174 looper letters, 69 selfloop transitions, 38 changer transitions 1/205 dead transitions. [2024-11-10 22:26:42,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 205 transitions, 921 flow [2024-11-10 22:26:42,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 22:26:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 22:26:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2506 transitions. [2024-11-10 22:26:42,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.600095785440613 [2024-11-10 22:26:42,014 INFO L175 Difference]: Start difference. First operand has 176 places, 191 transitions, 635 flow. Second operand 24 states and 2506 transitions. [2024-11-10 22:26:42,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 205 transitions, 921 flow [2024-11-10 22:26:42,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 205 transitions, 921 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:42,203 INFO L231 Difference]: Finished difference. Result has 201 places, 200 transitions, 781 flow [2024-11-10 22:26:42,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=781, PETRI_PLACES=201, PETRI_TRANSITIONS=200} [2024-11-10 22:26:42,204 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 44 predicate places. [2024-11-10 22:26:42,204 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 200 transitions, 781 flow [2024-11-10 22:26:42,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 101.14285714285714) internal successors, (1416), 14 states have internal predecessors, (1416), 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) [2024-11-10 22:26:42,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:42,206 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:42,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:26:42,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:42,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:42,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash 921661883, now seen corresponding path program 1 times [2024-11-10 22:26:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:42,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721730430] [2024-11-10 22:26:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:42,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721730430] [2024-11-10 22:26:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721730430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:42,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951927911] [2024-11-10 22:26:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:42,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:42,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:42,759 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) [2024-11-10 22:26:42,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:26:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:42,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 22:26:42,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:42,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:26:42,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-10 22:26:42,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:42,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:43,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-10 22:26:43,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-10 22:26:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951927911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:43,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:43,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-10 22:26:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919212820] [2024-11-10 22:26:43,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:43,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 22:26:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 22:26:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-10 22:26:43,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2024-11-10 22:26:43,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 200 transitions, 781 flow. Second operand has 15 states, 15 states have (on average 101.66666666666667) internal successors, (1525), 15 states have internal predecessors, (1525), 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) [2024-11-10 22:26:43,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:43,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2024-11-10 22:26:43,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:54,340 INFO L124 PetriNetUnfolderBase]: 65138/123503 cut-off events. [2024-11-10 22:26:54,340 INFO L125 PetriNetUnfolderBase]: For 28305/28849 co-relation queries the response was YES. [2024-11-10 22:26:54,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238278 conditions, 123503 events. 65138/123503 cut-off events. For 28305/28849 co-relation queries the response was YES. Maximal size of possible extension queue 2773. Compared 1323996 event pairs, 9422 based on Foata normal form. 544/111556 useless extension candidates. Maximal degree in co-relation 238192. Up to 31822 conditions per place. [2024-11-10 22:26:55,660 INFO L140 encePairwiseOnDemand]: 156/174 looper letters, 239 selfloop transitions, 29 changer transitions 0/369 dead transitions. [2024-11-10 22:26:55,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 369 transitions, 1709 flow [2024-11-10 22:26:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:26:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:26:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1240 transitions. [2024-11-10 22:26:55,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7126436781609196 [2024-11-10 22:26:55,664 INFO L175 Difference]: Start difference. First operand has 201 places, 200 transitions, 781 flow. Second operand 10 states and 1240 transitions. [2024-11-10 22:26:55,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 369 transitions, 1709 flow [2024-11-10 22:26:57,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 369 transitions, 1624 flow, removed 16 selfloop flow, removed 9 redundant places. [2024-11-10 22:26:57,894 INFO L231 Difference]: Finished difference. Result has 204 places, 209 transitions, 837 flow [2024-11-10 22:26:57,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=837, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2024-11-10 22:26:57,895 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 47 predicate places. [2024-11-10 22:26:57,895 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 837 flow [2024-11-10 22:26:57,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 101.66666666666667) internal successors, (1525), 15 states have internal predecessors, (1525), 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) [2024-11-10 22:26:57,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:57,896 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:57,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:26:58,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:58,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-10 22:26:58,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:58,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1493282406, now seen corresponding path program 1 times [2024-11-10 22:26:58,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:58,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023959774] [2024-11-10 22:26:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:58,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:58,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023959774] [2024-11-10 22:26:58,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023959774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351584475] [2024-11-10 22:26:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:58,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:58,453 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) [2024-11-10 22:26:58,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:26:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:58,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 22:26:58,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:58,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:26:58,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 22:26:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:58,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:58,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-11-10 22:26:58,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2024-11-10 22:26:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:58,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351584475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:58,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:58,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-10 22:26:58,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744230464] [2024-11-10 22:26:58,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:58,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 22:26:58,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:58,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 22:26:58,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-10 22:26:58,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 174 [2024-11-10 22:26:58,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 209 transitions, 837 flow. Second operand has 15 states, 15 states have (on average 97.8) internal successors, (1467), 15 states have internal predecessors, (1467), 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) [2024-11-10 22:26:58,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:58,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 174 [2024-11-10 22:26:58,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand