./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-inc-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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-inc-subseq.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 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:03:55,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:03:55,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-15 00:03:55,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:03:55,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:03:55,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:03:55,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:03:55,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:03:55,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:03:55,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:03:55,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 00:03:55,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 00:03:55,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:03:55,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:03:55,970 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:03:55,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:03:55,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 00:03:55,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 00:03:55,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:03:55,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 00:03:55,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:03:55,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 00:03:55,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 00:03:55,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 00:03:55,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:03:55,977 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-15 00:03:55,978 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:03:55,978 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 00:03:55,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:03:55,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:03:55,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:03:55,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:03:55,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 00:03:55,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 00:03:55,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:03:55,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:03:55,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 00:03:55,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 00:03:55,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:03:55,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 00:03:55,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 00:03:55,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 00:03:55,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 00:03:55,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 00:03:55,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 [2024-10-15 00:03:56,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:03:56,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:03:56,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:03:56,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:03:56,325 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:03:56,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-15 00:03:57,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:03:58,023 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:03:58,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-10-15 00:03:58,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4eb1715/5a5060734ee54cda8557c0bb32dd7c9c/FLAGc118fb92a [2024-10-15 00:03:58,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4eb1715/5a5060734ee54cda8557c0bb32dd7c9c [2024-10-15 00:03:58,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:03:58,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:03:58,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:03:58,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:03:58,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:03:58,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752802a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58, skipping insertion in model container [2024-10-15 00:03:58,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:03:58,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:03:58,277 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:03:58,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:03:58,341 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:03:58,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58 WrapperNode [2024-10-15 00:03:58,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:03:58,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:03:58,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:03:58,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:03:58,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,387 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 199 [2024-10-15 00:03:58,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:03:58,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:03:58,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:03:58,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:03:58,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,424 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]. [2024-10-15 00:03:58,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:03:58,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:03:58,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:03:58,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:03:58,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (1/1) ... [2024-10-15 00:03:58,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:03:58,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:03:58,473 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) [2024-10-15 00:03:58,475 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 [2024-10-15 00:03:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 00:03:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-15 00:03:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-15 00:03:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-15 00:03:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-15 00:03:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:03:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:03:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 00:03:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 00:03:58,520 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-15 00:03:58,676 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:03:58,679 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:03:59,016 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-15 00:03:59,017 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:03:59,317 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:03:59,317 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-15 00:03:59,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:03:59 BoogieIcfgContainer [2024-10-15 00:03:59,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:03:59,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 00:03:59,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 00:03:59,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 00:03:59,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:03:58" (1/3) ... [2024-10-15 00:03:59,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b1874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:03:59, skipping insertion in model container [2024-10-15 00:03:59,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:03:58" (2/3) ... [2024-10-15 00:03:59,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b1874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:03:59, skipping insertion in model container [2024-10-15 00:03:59,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:03:59" (3/3) ... [2024-10-15 00:03:59,330 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2024-10-15 00:03:59,352 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 00:03:59,352 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-15 00:03:59,353 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-15 00:03:59,418 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-15 00:03:59,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 100 flow [2024-10-15 00:03:59,481 INFO L124 PetriNetUnfolderBase]: 5/41 cut-off events. [2024-10-15 00:03:59,482 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-15 00:03:59,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 5/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 104 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-10-15 00:03:59,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 43 transitions, 100 flow [2024-10-15 00:03:59,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 87 flow [2024-10-15 00:03:59,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 00:03:59,506 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;@44faa648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 00:03:59,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-15 00:03:59,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-15 00:03:59,527 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-15 00:03:59,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-15 00:03:59,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:03:59,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-15 00:03:59,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:03:59,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:03:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 598072, now seen corresponding path program 1 times [2024-10-15 00:03:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:03:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884450347] [2024-10-15 00:03:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:03:59,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:03:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:03:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:03:59,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:03:59,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884450347] [2024-10-15 00:03:59,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884450347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:03:59,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:03:59,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:03:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386130851] [2024-10-15 00:03:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:03:59,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:03:59,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:03:59,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:03:59,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:03:59,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:03:59,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-15 00:03:59,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:03:59,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:03:59,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:00,147 INFO L124 PetriNetUnfolderBase]: 238/425 cut-off events. [2024-10-15 00:04:00,147 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-15 00:04:00,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 425 events. 238/425 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1833 event pairs, 142 based on Foata normal form. 2/292 useless extension candidates. Maximal degree in co-relation 751. Up to 368 conditions per place. [2024-10-15 00:04:00,158 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 29 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-10-15 00:04:00,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 167 flow [2024-10-15 00:04:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:04:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-15 00:04:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-10-15 00:04:00,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-10-15 00:04:00,175 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 87 flow. Second operand 4 states and 78 transitions. [2024-10-15 00:04:00,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 167 flow [2024-10-15 00:04:00,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-15 00:04:00,185 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 138 flow [2024-10-15 00:04:00,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2024-10-15 00:04:00,192 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-10-15 00:04:00,194 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 138 flow [2024-10-15 00:04:00,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-15 00:04:00,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:00,195 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-15 00:04:00,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 00:04:00,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:00,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash 637876464, now seen corresponding path program 1 times [2024-10-15 00:04:00,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442085535] [2024-10-15 00:04:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:00,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:00,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:00,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442085535] [2024-10-15 00:04:00,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442085535] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:00,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684227251] [2024-10-15 00:04:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:00,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:00,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:00,403 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) [2024-10-15 00:04:00,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-15 00:04:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:00,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:04:00,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:00,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:00,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-15 00:04:00,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684227251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:00,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-15 00:04:00,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-15 00:04:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158239714] [2024-10-15 00:04:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:00,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:04:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:04:00,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-15 00:04:00,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:00,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-10-15 00:04:00,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:00,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:00,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:00,801 INFO L124 PetriNetUnfolderBase]: 238/423 cut-off events. [2024-10-15 00:04:00,802 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-15 00:04:00,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 423 events. 238/423 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1827 event pairs, 142 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 791. Up to 358 conditions per place. [2024-10-15 00:04:00,808 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 22 selfloop transitions, 12 changer transitions 0/41 dead transitions. [2024-10-15 00:04:00,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 198 flow [2024-10-15 00:04:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:04:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-15 00:04:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-10-15 00:04:00,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-10-15 00:04:00,814 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 138 flow. Second operand 6 states and 90 transitions. [2024-10-15 00:04:00,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 198 flow [2024-10-15 00:04:00,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-15 00:04:00,818 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 154 flow [2024-10-15 00:04:00,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-10-15 00:04:00,820 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-10-15 00:04:00,820 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 154 flow [2024-10-15 00:04:00,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2024-10-15 00:04:00,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:00,821 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-15 00:04:00,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-15 00:04:01,021 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 [2024-10-15 00:04:01,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:01,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1700665509, now seen corresponding path program 1 times [2024-10-15 00:04:01,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265391141] [2024-10-15 00:04:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:01,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265391141] [2024-10-15 00:04:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265391141] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800354833] [2024-10-15 00:04:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:01,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:01,112 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) [2024-10-15 00:04:01,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-15 00:04:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:01,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:04:01,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:01,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:01,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800354833] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:01,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:01,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-15 00:04:01,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392151757] [2024-10-15 00:04:01,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:01,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-15 00:04:01,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:01,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-15 00:04:01,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-15 00:04:01,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:01,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:01,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:01,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:01,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:01,509 INFO L124 PetriNetUnfolderBase]: 244/447 cut-off events. [2024-10-15 00:04:01,509 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-15 00:04:01,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 447 events. 244/447 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2016 event pairs, 142 based on Foata normal form. 6/320 useless extension candidates. Maximal degree in co-relation 793. Up to 369 conditions per place. [2024-10-15 00:04:01,515 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 27 selfloop transitions, 25 changer transitions 0/59 dead transitions. [2024-10-15 00:04:01,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 372 flow [2024-10-15 00:04:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-15 00:04:01,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-15 00:04:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2024-10-15 00:04:01,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34418604651162793 [2024-10-15 00:04:01,519 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 154 flow. Second operand 10 states and 148 transitions. [2024-10-15 00:04:01,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 372 flow [2024-10-15 00:04:01,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 314 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-15 00:04:01,525 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 294 flow [2024-10-15 00:04:01,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2024-10-15 00:04:01,526 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-10-15 00:04:01,527 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 294 flow [2024-10-15 00:04:01,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:01,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:01,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:01,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-15 00:04:01,728 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 [2024-10-15 00:04:01,729 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:01,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash -483914454, now seen corresponding path program 1 times [2024-10-15 00:04:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:01,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133302611] [2024-10-15 00:04:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:01,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:01,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:01,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133302611] [2024-10-15 00:04:01,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133302611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:01,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:04:01,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:04:01,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803403751] [2024-10-15 00:04:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:01,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:04:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:01,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:04:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:04:01,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:01,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-10-15 00:04:01,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:01,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:01,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:02,019 INFO L124 PetriNetUnfolderBase]: 302/581 cut-off events. [2024-10-15 00:04:02,020 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-15 00:04:02,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 581 events. 302/581 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2835 event pairs, 185 based on Foata normal form. 12/427 useless extension candidates. Maximal degree in co-relation 1156. Up to 384 conditions per place. [2024-10-15 00:04:02,025 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 72 selfloop transitions, 3 changer transitions 3/87 dead transitions. [2024-10-15 00:04:02,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 583 flow [2024-10-15 00:04:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:04:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-15 00:04:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-15 00:04:02,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2024-10-15 00:04:02,028 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 294 flow. Second operand 4 states and 101 transitions. [2024-10-15 00:04:02,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 583 flow [2024-10-15 00:04:02,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 87 transitions, 549 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-15 00:04:02,034 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 285 flow [2024-10-15 00:04:02,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2024-10-15 00:04:02,035 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-10-15 00:04:02,036 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 285 flow [2024-10-15 00:04:02,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-10-15 00:04:02,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:02,036 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:02,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-15 00:04:02,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:02,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:02,038 INFO L85 PathProgramCache]: Analyzing trace with hash -483914420, now seen corresponding path program 1 times [2024-10-15 00:04:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:02,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213106035] [2024-10-15 00:04:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:02,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:02,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:02,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213106035] [2024-10-15 00:04:02,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213106035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:02,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:04:02,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-15 00:04:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966442547] [2024-10-15 00:04:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:02,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-15 00:04:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:02,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-15 00:04:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-15 00:04:02,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:02,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-15 00:04:02,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:02,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:02,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:02,255 INFO L124 PetriNetUnfolderBase]: 476/852 cut-off events. [2024-10-15 00:04:02,255 INFO L125 PetriNetUnfolderBase]: For 134/154 co-relation queries the response was YES. [2024-10-15 00:04:02,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 852 events. 476/852 cut-off events. For 134/154 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4426 event pairs, 145 based on Foata normal form. 0/607 useless extension candidates. Maximal degree in co-relation 1894. Up to 402 conditions per place. [2024-10-15 00:04:02,261 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 64 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-10-15 00:04:02,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 464 flow [2024-10-15 00:04:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-15 00:04:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-15 00:04:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-15 00:04:02,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-10-15 00:04:02,264 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 285 flow. Second operand 3 states and 83 transitions. [2024-10-15 00:04:02,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 464 flow [2024-10-15 00:04:02,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 460 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-15 00:04:02,271 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 303 flow [2024-10-15 00:04:02,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2024-10-15 00:04:02,272 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2024-10-15 00:04:02,272 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 303 flow [2024-10-15 00:04:02,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-15 00:04:02,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:02,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:02,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-15 00:04:02,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:02,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:02,273 INFO L85 PathProgramCache]: Analyzing trace with hash -483914421, now seen corresponding path program 1 times [2024-10-15 00:04:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183511124] [2024-10-15 00:04:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183511124] [2024-10-15 00:04:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183511124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:04:02,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-15 00:04:02,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686371110] [2024-10-15 00:04:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:02,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-15 00:04:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-15 00:04:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-15 00:04:02,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:02,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-15 00:04:02,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:02,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:02,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:02,469 INFO L124 PetriNetUnfolderBase]: 431/819 cut-off events. [2024-10-15 00:04:02,470 INFO L125 PetriNetUnfolderBase]: For 186/208 co-relation queries the response was YES. [2024-10-15 00:04:02,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 819 events. 431/819 cut-off events. For 186/208 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4442 event pairs, 285 based on Foata normal form. 36/652 useless extension candidates. Maximal degree in co-relation 1858. Up to 720 conditions per place. [2024-10-15 00:04:02,476 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 49 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2024-10-15 00:04:02,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 393 flow [2024-10-15 00:04:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-15 00:04:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-15 00:04:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-10-15 00:04:02,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-10-15 00:04:02,480 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 303 flow. Second operand 3 states and 65 transitions. [2024-10-15 00:04:02,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 393 flow [2024-10-15 00:04:02,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 381 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-15 00:04:02,483 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 283 flow [2024-10-15 00:04:02,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-10-15 00:04:02,486 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-10-15 00:04:02,486 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 283 flow [2024-10-15 00:04:02,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-10-15 00:04:02,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:02,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:02,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-15 00:04:02,487 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:02,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1224124274, now seen corresponding path program 1 times [2024-10-15 00:04:02,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:02,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024672746] [2024-10-15 00:04:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:02,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:02,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024672746] [2024-10-15 00:04:02,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024672746] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:02,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883153329] [2024-10-15 00:04:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:02,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:02,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:02,681 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) [2024-10-15 00:04:02,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-15 00:04:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:02,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:04:02,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-15 00:04:02,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-15 00:04:02,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883153329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:02,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-15 00:04:02,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-10-15 00:04:02,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409094053] [2024-10-15 00:04:02,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:02,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-15 00:04:02,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:02,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-15 00:04:02,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-15 00:04:02,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:02,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:02,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:02,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:02,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:02,932 INFO L124 PetriNetUnfolderBase]: 429/817 cut-off events. [2024-10-15 00:04:02,932 INFO L125 PetriNetUnfolderBase]: For 134/156 co-relation queries the response was YES. [2024-10-15 00:04:02,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 817 events. 429/817 cut-off events. For 134/156 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4367 event pairs, 285 based on Foata normal form. 2/616 useless extension candidates. Maximal degree in co-relation 1908. Up to 712 conditions per place. [2024-10-15 00:04:02,939 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 43 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-10-15 00:04:02,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 377 flow [2024-10-15 00:04:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-15 00:04:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-15 00:04:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-15 00:04:02,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-10-15 00:04:02,941 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 283 flow. Second operand 3 states and 67 transitions. [2024-10-15 00:04:02,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 377 flow [2024-10-15 00:04:02,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-15 00:04:02,944 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 290 flow [2024-10-15 00:04:02,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2024-10-15 00:04:02,945 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2024-10-15 00:04:02,945 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 290 flow [2024-10-15 00:04:02,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:02,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:02,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:02,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-15 00:04:03,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:03,149 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:03,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:03,149 INFO L85 PathProgramCache]: Analyzing trace with hash 85303529, now seen corresponding path program 1 times [2024-10-15 00:04:03,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:03,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041777918] [2024-10-15 00:04:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-15 00:04:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041777918] [2024-10-15 00:04:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041777918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830802695] [2024-10-15 00:04:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:03,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:03,327 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) [2024-10-15 00:04:03,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-15 00:04:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:03,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:04:03,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-15 00:04:03,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-15 00:04:03,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830802695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:04:03,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-15 00:04:03,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-10-15 00:04:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742662876] [2024-10-15 00:04:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:04:03,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-15 00:04:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-15 00:04:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-15 00:04:03,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:03,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:03,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:03,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:03,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:03,504 INFO L124 PetriNetUnfolderBase]: 317/645 cut-off events. [2024-10-15 00:04:03,504 INFO L125 PetriNetUnfolderBase]: For 134/144 co-relation queries the response was YES. [2024-10-15 00:04:03,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 645 events. 317/645 cut-off events. For 134/144 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3272 event pairs, 216 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1472. Up to 554 conditions per place. [2024-10-15 00:04:03,508 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 45 selfloop transitions, 1 changer transitions 1/56 dead transitions. [2024-10-15 00:04:03,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 376 flow [2024-10-15 00:04:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-15 00:04:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-15 00:04:03,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-10-15 00:04:03,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2024-10-15 00:04:03,509 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 290 flow. Second operand 3 states and 64 transitions. [2024-10-15 00:04:03,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 376 flow [2024-10-15 00:04:03,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-15 00:04:03,512 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 275 flow [2024-10-15 00:04:03,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=55, PETRI_TRANSITIONS=55} [2024-10-15 00:04:03,512 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-10-15 00:04:03,515 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 275 flow [2024-10-15 00:04:03,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:04:03,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:03,516 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:03,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-15 00:04:03,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:03,717 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:03,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -61526606, now seen corresponding path program 1 times [2024-10-15 00:04:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:03,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105536458] [2024-10-15 00:04:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-15 00:04:03,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:03,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105536458] [2024-10-15 00:04:03,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105536458] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:03,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327529189] [2024-10-15 00:04:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:03,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:03,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:03,786 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) [2024-10-15 00:04:03,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-15 00:04:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:03,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-15 00:04:03,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:04,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:04,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:04,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327529189] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:04,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:04,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2024-10-15 00:04:04,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195044961] [2024-10-15 00:04:04,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:04,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-15 00:04:04,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-15 00:04:04,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-15 00:04:04,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:04,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 275 flow. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 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) [2024-10-15 00:04:04,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:04,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:04,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:04,657 INFO L124 PetriNetUnfolderBase]: 598/1106 cut-off events. [2024-10-15 00:04:04,658 INFO L125 PetriNetUnfolderBase]: For 191/207 co-relation queries the response was YES. [2024-10-15 00:04:04,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 1106 events. 598/1106 cut-off events. For 191/207 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5848 event pairs, 140 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 2549. Up to 242 conditions per place. [2024-10-15 00:04:04,664 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 42 selfloop transitions, 28 changer transitions 42/119 dead transitions. [2024-10-15 00:04:04,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 119 transitions, 666 flow [2024-10-15 00:04:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-15 00:04:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-15 00:04:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 222 transitions. [2024-10-15 00:04:04,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3687707641196013 [2024-10-15 00:04:04,667 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 275 flow. Second operand 14 states and 222 transitions. [2024-10-15 00:04:04,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 119 transitions, 666 flow [2024-10-15 00:04:04,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 119 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-15 00:04:04,671 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 337 flow [2024-10-15 00:04:04,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=337, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-10-15 00:04:04,672 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2024-10-15 00:04:04,673 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 337 flow [2024-10-15 00:04:04,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 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) [2024-10-15 00:04:04,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:04,674 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-15 00:04:04,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-15 00:04:04,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:04,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:04,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1000513299, now seen corresponding path program 2 times [2024-10-15 00:04:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366228343] [2024-10-15 00:04:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:04,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366228343] [2024-10-15 00:04:05,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366228343] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811532691] [2024-10-15 00:04:05,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:04:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:05,030 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) [2024-10-15 00:04:05,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-15 00:04:05,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-15 00:04:05,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:04:05,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-15 00:04:05,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-15 00:04:05,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-15 00:04:05,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811532691] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:05,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:05,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-15 00:04:05,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665643068] [2024-10-15 00:04:05,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:05,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-15 00:04:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-15 00:04:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-15 00:04:05,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:05,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 337 flow. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 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) [2024-10-15 00:04:05,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:05,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:05,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:05,538 INFO L124 PetriNetUnfolderBase]: 398/788 cut-off events. [2024-10-15 00:04:05,538 INFO L125 PetriNetUnfolderBase]: For 389/398 co-relation queries the response was YES. [2024-10-15 00:04:05,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 788 events. 398/788 cut-off events. For 389/398 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3918 event pairs, 274 based on Foata normal form. 4/698 useless extension candidates. Maximal degree in co-relation 1997. Up to 653 conditions per place. [2024-10-15 00:04:05,543 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 21 selfloop transitions, 32 changer transitions 0/60 dead transitions. [2024-10-15 00:04:05,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 60 transitions, 482 flow [2024-10-15 00:04:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-15 00:04:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-15 00:04:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 270 transitions. [2024-10-15 00:04:05,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2616279069767442 [2024-10-15 00:04:05,545 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 337 flow. Second operand 24 states and 270 transitions. [2024-10-15 00:04:05,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 60 transitions, 482 flow [2024-10-15 00:04:05,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 60 transitions, 468 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-15 00:04:05,549 INFO L231 Difference]: Finished difference. Result has 84 places, 60 transitions, 439 flow [2024-10-15 00:04:05,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=439, PETRI_PLACES=84, PETRI_TRANSITIONS=60} [2024-10-15 00:04:05,549 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 43 predicate places. [2024-10-15 00:04:05,550 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 60 transitions, 439 flow [2024-10-15 00:04:05,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 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) [2024-10-15 00:04:05,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:05,550 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1] [2024-10-15 00:04:05,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-15 00:04:05,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:05,751 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:05,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:05,752 INFO L85 PathProgramCache]: Analyzing trace with hash 163657515, now seen corresponding path program 1 times [2024-10-15 00:04:05,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:05,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329037642] [2024-10-15 00:04:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:05,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:05,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:05,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329037642] [2024-10-15 00:04:05,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329037642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:05,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167374626] [2024-10-15 00:04:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:05,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:05,937 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) [2024-10-15 00:04:05,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-15 00:04:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:06,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-15 00:04:06,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:06,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:06,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167374626] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:06,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:06,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-10-15 00:04:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914778215] [2024-10-15 00:04:06,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:06,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-15 00:04:06,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:06,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-15 00:04:06,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-10-15 00:04:06,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:06,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 60 transitions, 439 flow. Second operand has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 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) [2024-10-15 00:04:06,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:06,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:06,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:06,744 INFO L124 PetriNetUnfolderBase]: 419/876 cut-off events. [2024-10-15 00:04:06,745 INFO L125 PetriNetUnfolderBase]: For 892/901 co-relation queries the response was YES. [2024-10-15 00:04:06,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2395 conditions, 876 events. 419/876 cut-off events. For 892/901 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4359 event pairs, 274 based on Foata normal form. 14/793 useless extension candidates. Maximal degree in co-relation 2374. Up to 670 conditions per place. [2024-10-15 00:04:06,752 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 24 selfloop transitions, 71 changer transitions 0/102 dead transitions. [2024-10-15 00:04:06,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 1049 flow [2024-10-15 00:04:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-15 00:04:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-15 00:04:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 334 transitions. [2024-10-15 00:04:06,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29874776386404295 [2024-10-15 00:04:06,755 INFO L175 Difference]: Start difference. First operand has 84 places, 60 transitions, 439 flow. Second operand 26 states and 334 transitions. [2024-10-15 00:04:06,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 1049 flow [2024-10-15 00:04:06,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 102 transitions, 873 flow, removed 31 selfloop flow, removed 14 redundant places. [2024-10-15 00:04:06,762 INFO L231 Difference]: Finished difference. Result has 102 places, 102 transitions, 877 flow [2024-10-15 00:04:06,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=877, PETRI_PLACES=102, PETRI_TRANSITIONS=102} [2024-10-15 00:04:06,763 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 61 predicate places. [2024-10-15 00:04:06,763 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 102 transitions, 877 flow [2024-10-15 00:04:06,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 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) [2024-10-15 00:04:06,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:06,765 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:06,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-15 00:04:06,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:06,967 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:06,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1547408588, now seen corresponding path program 2 times [2024-10-15 00:04:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:06,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889649041] [2024-10-15 00:04:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:06,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-15 00:04:07,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889649041] [2024-10-15 00:04:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889649041] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085709144] [2024-10-15 00:04:07,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:04:07,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:07,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:07,046 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) [2024-10-15 00:04:07,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-15 00:04:07,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-15 00:04:07,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:04:07,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:04:07,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-15 00:04:07,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-15 00:04:07,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085709144] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:07,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:07,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 5 [2024-10-15 00:04:07,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563700481] [2024-10-15 00:04:07,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:07,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-15 00:04:07,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-15 00:04:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-15 00:04:07,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-15 00:04:07,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 877 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-10-15 00:04:07,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:07,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-15 00:04:07,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:07,412 INFO L124 PetriNetUnfolderBase]: 533/1020 cut-off events. [2024-10-15 00:04:07,412 INFO L125 PetriNetUnfolderBase]: For 845/853 co-relation queries the response was YES. [2024-10-15 00:04:07,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 1020 events. 533/1020 cut-off events. For 845/853 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4998 event pairs, 88 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 2793. Up to 320 conditions per place. [2024-10-15 00:04:07,418 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 65 selfloop transitions, 1 changer transitions 73/142 dead transitions. [2024-10-15 00:04:07,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 1247 flow [2024-10-15 00:04:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-15 00:04:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-15 00:04:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2024-10-15 00:04:07,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521594684385382 [2024-10-15 00:04:07,420 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 877 flow. Second operand 7 states and 157 transitions. [2024-10-15 00:04:07,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 1247 flow [2024-10-15 00:04:07,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 1064 flow, removed 54 selfloop flow, removed 12 redundant places. [2024-10-15 00:04:07,428 INFO L231 Difference]: Finished difference. Result has 95 places, 69 transitions, 573 flow [2024-10-15 00:04:07,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=573, PETRI_PLACES=95, PETRI_TRANSITIONS=69} [2024-10-15 00:04:07,430 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places. [2024-10-15 00:04:07,431 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 69 transitions, 573 flow [2024-10-15 00:04:07,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-10-15 00:04:07,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:04:07,431 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1] [2024-10-15 00:04:07,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-15 00:04:07,632 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,SelfDestructingSolverStorable11 [2024-10-15 00:04:07,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:04:07,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:04:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash 827250642, now seen corresponding path program 2 times [2024-10-15 00:04:07,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:04:07,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179374373] [2024-10-15 00:04:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:04:07,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:04:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:04:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:04:08,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:04:08,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179374373] [2024-10-15 00:04:08,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179374373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:04:08,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680489522] [2024-10-15 00:04:08,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:04:08,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:04:08,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:04:08,293 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) [2024-10-15 00:04:08,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-15 00:04:08,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-15 00:04:08,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:04:08,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-15 00:04:08,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:04:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-15 00:04:08,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:04:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-15 00:04:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680489522] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:04:08,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:04:08,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 3, 3] total 30 [2024-10-15 00:04:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988159735] [2024-10-15 00:04:08,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:04:08,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-15 00:04:08,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:04:08,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-15 00:04:08,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-10-15 00:04:08,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-15 00:04:08,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 69 transitions, 573 flow. Second operand has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 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) [2024-10-15 00:04:08,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:04:08,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-15 00:04:08,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:04:09,253 INFO L124 PetriNetUnfolderBase]: 15/141 cut-off events. [2024-10-15 00:04:09,254 INFO L125 PetriNetUnfolderBase]: For 617/617 co-relation queries the response was YES. [2024-10-15 00:04:09,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 141 events. 15/141 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 250 event pairs, 0 based on Foata normal form. 4/142 useless extension candidates. Maximal degree in co-relation 550. Up to 42 conditions per place. [2024-10-15 00:04:09,255 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-10-15 00:04:09,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 73 transitions, 733 flow [2024-10-15 00:04:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-15 00:04:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-15 00:04:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 343 transitions. [2024-10-15 00:04:09,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.26589147286821707 [2024-10-15 00:04:09,257 INFO L175 Difference]: Start difference. First operand has 95 places, 69 transitions, 573 flow. Second operand 30 states and 343 transitions. [2024-10-15 00:04:09,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 73 transitions, 733 flow [2024-10-15 00:04:09,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 676 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-10-15 00:04:09,262 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-10-15 00:04:09,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-10-15 00:04:09,263 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 40 predicate places. [2024-10-15 00:04:09,264 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-10-15 00:04:09,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 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) [2024-10-15 00:04:09,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-15 00:04:09,268 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-15 00:04:09,268 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-15 00:04:09,268 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-15 00:04:09,268 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-10-15 00:04:09,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-15 00:04:09,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-15 00:04:09,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-15 00:04:09,471 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,SelfDestructingSolverStorable12 [2024-10-15 00:04:09,472 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:04:09,478 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-15 00:04:09,478 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 00:04:09,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:04:09 BasicIcfg [2024-10-15 00:04:09,484 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 00:04:09,485 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:04:09,485 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:04:09,485 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:04:09,486 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:03:59" (3/4) ... [2024-10-15 00:04:09,487 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 00:04:09,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-15 00:04:09,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-15 00:04:09,497 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2024-10-15 00:04:09,498 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-10-15 00:04:09,498 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-15 00:04:09,498 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-15 00:04:09,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-15 00:04:09,601 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-15 00:04:09,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:04:09,601 INFO L158 Benchmark]: Toolchain (without parser) took 11551.66ms. Allocated memory was 174.1MB in the beginning and 272.6MB in the end (delta: 98.6MB). Free memory was 140.0MB in the beginning and 92.2MB in the end (delta: 47.8MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,602 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 174.1MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:04:09,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.61ms. Allocated memory is still 174.1MB. Free memory was 144.6MB in the beginning and 132.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.83ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,603 INFO L158 Benchmark]: Boogie Preprocessor took 55.92ms. Allocated memory is still 174.1MB. Free memory was 129.9MB in the beginning and 127.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,603 INFO L158 Benchmark]: RCFGBuilder took 873.35ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 87.9MB in the end (delta: 39.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,603 INFO L158 Benchmark]: TraceAbstraction took 10163.82ms. Allocated memory was 174.1MB in the beginning and 272.6MB in the end (delta: 98.6MB). Free memory was 87.0MB in the beginning and 97.4MB in the end (delta: -10.4MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,603 INFO L158 Benchmark]: Witness Printer took 115.84ms. Allocated memory is still 272.6MB. Free memory was 97.4MB in the beginning and 92.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 00:04:09,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 174.1MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.61ms. Allocated memory is still 174.1MB. Free memory was 144.6MB in the beginning and 132.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.83ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.92ms. Allocated memory is still 174.1MB. Free memory was 129.9MB in the beginning and 127.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 873.35ms. Allocated memory is still 174.1MB. Free memory was 127.0MB in the beginning and 87.9MB in the end (delta: 39.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10163.82ms. Allocated memory was 174.1MB in the beginning and 272.6MB in the end (delta: 98.6MB). Free memory was 87.0MB in the beginning and 97.4MB in the end (delta: -10.4MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. * Witness Printer took 115.84ms. Allocated memory is still 272.6MB. Free memory was 97.4MB in the beginning and 92.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: 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 5 procedures, 61 locations, 18 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: 10.0s, OverallIterations: 13, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 978 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 916 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 434 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1749 IncrementalHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 18 mSDtfsCounter, 1749 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 207 SyntacticMatches, 6 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=877occurred in iteration=11, InterpolantAutomatonStates: 137, 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, 325 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1343 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1086 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 502/1000 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-15 00:04:09,631 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