./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-context1.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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:15:04,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:15:04,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:15:04,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:15:04,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:15:04,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:15:04,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:15:04,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:15:04,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:15:04,446 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:15:04,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:15:04,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:15:04,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:15:04,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:15:04,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:15:04,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:15:04,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:15:04,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:15:04,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:15:04,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:15:04,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:15:04,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:15:04,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:15:04,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:15:04,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:15:04,457 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:15:04,457 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:15:04,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:15:04,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:15:04,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:15:04,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:15:04,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:15:04,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:15:04,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:15:04,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:15:04,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:15:04,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:15:04,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:15:04,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:15:04,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:15:04,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:15:04,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:15:04,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:15:04,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:15:04,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2024-11-09 15:15:04,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:15:04,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:15:04,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:15:04,812 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:15:04,813 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:15:04,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-09 15:15:06,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:15:06,522 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:15:06,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2024-11-09 15:15:06,533 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d0982a17/0e4cfa15d0bd45ee89704ab3d62b143b/FLAG29d14066e [2024-11-09 15:15:06,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d0982a17/0e4cfa15d0bd45ee89704ab3d62b143b [2024-11-09 15:15:06,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:15:06,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:15:06,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:15:06,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:15:06,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:15:06,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6369806f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06, skipping insertion in model container [2024-11-09 15:15:06,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:15:06,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:15:06,825 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:15:06,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:15:06,874 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:15:06,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06 WrapperNode [2024-11-09 15:15:06,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:15:06,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:15:06,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:15:06,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:15:06,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,920 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 147 [2024-11-09 15:15:06,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:15:06,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:15:06,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:15:06,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:15:06,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,965 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-09 15:15:06,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:15:06,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:15:06,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:15:06,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:15:06,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (1/1) ... [2024-11-09 15:15:06,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:15:07,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:07,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:15:07,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:15:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:15:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:15:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:15:07,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:15:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:15:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:15:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:15:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:15:07,069 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:15:07,191 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:15:07,193 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:15:07,488 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:15:07,488 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:15:07,808 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:15:07,808 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:15:07,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:07 BoogieIcfgContainer [2024-11-09 15:15:07,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:15:07,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:15:07,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:15:07,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:15:07,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:15:06" (1/3) ... [2024-11-09 15:15:07,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74921d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:15:07, skipping insertion in model container [2024-11-09 15:15:07,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:06" (2/3) ... [2024-11-09 15:15:07,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74921d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:15:07, skipping insertion in model container [2024-11-09 15:15:07,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:07" (3/3) ... [2024-11-09 15:15:07,821 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2024-11-09 15:15:07,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:15:07,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 15:15:07,841 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:15:07,919 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:15:07,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2024-11-09 15:15:07,985 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2024-11-09 15:15:07,986 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:15:07,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 100 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-09 15:15:07,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2024-11-09 15:15:07,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2024-11-09 15:15:08,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:15:08,018 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;@19f35f6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:15:08,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-09 15:15:08,025 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:15:08,025 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:15:08,025 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:15:08,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:08,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:15:08,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:08,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash 505329, now seen corresponding path program 1 times [2024-11-09 15:15:08,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:08,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400661057] [2024-11-09 15:15:08,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:08,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:08,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400661057] [2024-11-09 15:15:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400661057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:08,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:15:08,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213110379] [2024-11-09 15:15:08,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:08,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:15:08,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:08,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:15:08,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:15:08,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-09 15:15:08,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:08,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:08,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-09 15:15:08,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:08,678 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2024-11-09 15:15:08,679 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-09 15:15:08,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1939 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2024-11-09 15:15:08,685 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-11-09 15:15:08,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2024-11-09 15:15:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:15:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:15:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-09 15:15:08,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-09 15:15:08,705 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2024-11-09 15:15:08,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2024-11-09 15:15:08,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:15:08,712 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2024-11-09 15:15:08,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2024-11-09 15:15:08,718 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-09 15:15:08,719 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2024-11-09 15:15:08,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:08,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:08,719 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:15:08,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:15:08,720 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:08,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2125143173, now seen corresponding path program 1 times [2024-11-09 15:15:08,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:08,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96106081] [2024-11-09 15:15:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:08,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:08,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:08,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96106081] [2024-11-09 15:15:08,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96106081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:08,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440528128] [2024-11-09 15:15:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:08,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:08,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:08,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:08,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:15:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:08,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:15:08,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:09,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:15:09,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440528128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:09,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:15:09,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:15:09,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518496887] [2024-11-09 15:15:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:09,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:15:09,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:09,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:15:09,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:15:09,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-09 15:15:09,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:09,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:09,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-09 15:15:09,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:09,278 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2024-11-09 15:15:09,278 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 15:15:09,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1938 event pairs, 224 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2024-11-09 15:15:09,284 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-11-09 15:15:09,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2024-11-09 15:15:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:15:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:15:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-11-09 15:15:09,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-09 15:15:09,287 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2024-11-09 15:15:09,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2024-11-09 15:15:09,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:09,290 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2024-11-09 15:15:09,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-09 15:15:09,293 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-09 15:15:09,293 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2024-11-09 15:15:09,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:09,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:09,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:09,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:15:09,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:09,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:09,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648030, now seen corresponding path program 1 times [2024-11-09 15:15:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541589830] [2024-11-09 15:15:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:09,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541589830] [2024-11-09 15:15:09,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541589830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:09,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:09,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:15:09,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113858512] [2024-11-09 15:15:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:09,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:15:09,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:09,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:15:09,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:15:09,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:09,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:09,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:09,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:09,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:09,727 INFO L124 PetriNetUnfolderBase]: 339/597 cut-off events. [2024-11-09 15:15:09,728 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-09 15:15:09,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 597 events. 339/597 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2534 event pairs, 134 based on Foata normal form. 13/424 useless extension candidates. Maximal degree in co-relation 1210. Up to 425 conditions per place. [2024-11-09 15:15:09,734 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 37 selfloop transitions, 2 changer transitions 3/46 dead transitions. [2024-11-09 15:15:09,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 215 flow [2024-11-09 15:15:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:15:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:15:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-09 15:15:09,736 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-09 15:15:09,736 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2024-11-09 15:15:09,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 215 flow [2024-11-09 15:15:09,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 193 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:15:09,738 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 100 flow [2024-11-09 15:15:09,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-09 15:15:09,739 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-11-09 15:15:09,739 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 100 flow [2024-11-09 15:15:09,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:09,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:09,741 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:15:09,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:15:09,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:09,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:09,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1454928451, now seen corresponding path program 1 times [2024-11-09 15:15:09,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:09,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163119608] [2024-11-09 15:15:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:09,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163119608] [2024-11-09 15:15:09,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163119608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661669380] [2024-11-09 15:15:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:09,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:09,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:09,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:09,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:15:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:09,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:15:09,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:09,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:09,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661669380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:09,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:09,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 15:15:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909143527] [2024-11-09 15:15:09,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:09,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:15:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:15:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:15:10,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-09 15:15:10,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:10,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-09 15:15:10,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:10,165 INFO L124 PetriNetUnfolderBase]: 342/609 cut-off events. [2024-11-09 15:15:10,165 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-09 15:15:10,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 609 events. 342/609 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2681 event pairs, 300 based on Foata normal form. 3/453 useless extension candidates. Maximal degree in co-relation 1360. Up to 594 conditions per place. [2024-11-09 15:15:10,169 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2024-11-09 15:15:10,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 208 flow [2024-11-09 15:15:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:15:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:15:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-11-09 15:15:10,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2024-11-09 15:15:10,171 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 100 flow. Second operand 10 states and 91 transitions. [2024-11-09 15:15:10,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 208 flow [2024-11-09 15:15:10,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:10,173 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 172 flow [2024-11-09 15:15:10,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2024-11-09 15:15:10,174 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-09 15:15:10,174 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 172 flow [2024-11-09 15:15:10,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:10,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:10,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:15:10,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 15:15:10,375 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1382648029, now seen corresponding path program 1 times [2024-11-09 15:15:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:10,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723719263] [2024-11-09 15:15:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:10,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:10,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723719263] [2024-11-09 15:15:10,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723719263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:10,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:10,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:15:10,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181303714] [2024-11-09 15:15:10,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:15:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:15:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:15:10,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:10,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:10,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:10,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:10,560 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2024-11-09 15:15:10,561 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-09 15:15:10,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 582 events. 327/582 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2488 event pairs, 119 based on Foata normal form. 12/440 useless extension candidates. Maximal degree in co-relation 1332. Up to 425 conditions per place. [2024-11-09 15:15:10,565 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 45 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2024-11-09 15:15:10,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 299 flow [2024-11-09 15:15:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:15:10,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:15:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-09 15:15:10,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-09 15:15:10,566 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 172 flow. Second operand 3 states and 60 transitions. [2024-11-09 15:15:10,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 299 flow [2024-11-09 15:15:10,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 288 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 15:15:10,570 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 169 flow [2024-11-09 15:15:10,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-09 15:15:10,571 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-09 15:15:10,571 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 169 flow [2024-11-09 15:15:10,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:10,572 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:10,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:15:10,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:10,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375046, now seen corresponding path program 1 times [2024-11-09 15:15:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:10,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787168518] [2024-11-09 15:15:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:10,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:10,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787168518] [2024-11-09 15:15:10,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787168518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675402164] [2024-11-09 15:15:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:10,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:10,618 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:10,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:15:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:10,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:15:10,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:10,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:15:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675402164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:15:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-09 15:15:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992858155] [2024-11-09 15:15:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:15:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:15:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:15:10,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:10,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:10,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:10,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:10,889 INFO L124 PetriNetUnfolderBase]: 415/709 cut-off events. [2024-11-09 15:15:10,889 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-09 15:15:10,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 709 events. 415/709 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2879 event pairs, 173 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 1648. Up to 371 conditions per place. [2024-11-09 15:15:10,894 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 47 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-11-09 15:15:10,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 320 flow [2024-11-09 15:15:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:15:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:15:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-09 15:15:10,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-09 15:15:10,897 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 169 flow. Second operand 4 states and 73 transitions. [2024-11-09 15:15:10,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 320 flow [2024-11-09 15:15:10,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:15:10,901 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 214 flow [2024-11-09 15:15:10,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-11-09 15:15:10,902 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-11-09 15:15:10,902 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 214 flow [2024-11-09 15:15:10,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:10,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:10,903 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:10,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:15:11,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:11,104 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:11,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375039, now seen corresponding path program 1 times [2024-11-09 15:15:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195447728] [2024-11-09 15:15:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:11,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:11,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195447728] [2024-11-09 15:15:11,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195447728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:11,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464064595] [2024-11-09 15:15:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:11,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:11,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:11,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:11,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:15:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:11,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:15:11,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:11,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:11,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464064595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:11,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:11,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-09 15:15:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570755226] [2024-11-09 15:15:11,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:11,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:15:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:11,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:15:11,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:15:11,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:11,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:11,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:11,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:11,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:11,612 INFO L124 PetriNetUnfolderBase]: 1040/1773 cut-off events. [2024-11-09 15:15:11,613 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-11-09 15:15:11,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 1773 events. 1040/1773 cut-off events. For 931/931 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8199 event pairs, 276 based on Foata normal form. 26/1525 useless extension candidates. Maximal degree in co-relation 4519. Up to 556 conditions per place. [2024-11-09 15:15:11,627 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 94 selfloop transitions, 9 changer transitions 3/110 dead transitions. [2024-11-09 15:15:11,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 110 transitions, 640 flow [2024-11-09 15:15:11,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:15:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:15:11,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-11-09 15:15:11,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436507936507936 [2024-11-09 15:15:11,630 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 214 flow. Second operand 6 states and 137 transitions. [2024-11-09 15:15:11,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 110 transitions, 640 flow [2024-11-09 15:15:11,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 110 transitions, 611 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:11,638 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 309 flow [2024-11-09 15:15:11,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2024-11-09 15:15:11,642 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-09 15:15:11,642 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 309 flow [2024-11-09 15:15:11,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:11,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:11,642 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:11,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:15:11,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:11,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:11,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:11,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1730375045, now seen corresponding path program 1 times [2024-11-09 15:15:11,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:11,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108923314] [2024-11-09 15:15:11,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:11,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:11,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:11,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108923314] [2024-11-09 15:15:11,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108923314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:11,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072220568] [2024-11-09 15:15:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:11,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:11,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:11,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:11,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:15:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:11,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:15:11,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:12,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:12,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072220568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:12,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:12,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-09 15:15:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195486480] [2024-11-09 15:15:12,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:12,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:15:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:15:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:15:12,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:12,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:12,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:12,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:12,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:12,500 INFO L124 PetriNetUnfolderBase]: 1824/3102 cut-off events. [2024-11-09 15:15:12,500 INFO L125 PetriNetUnfolderBase]: For 4067/4067 co-relation queries the response was YES. [2024-11-09 15:15:12,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8295 conditions, 3102 events. 1824/3102 cut-off events. For 4067/4067 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16215 event pairs, 333 based on Foata normal form. 247/2910 useless extension candidates. Maximal degree in co-relation 8253. Up to 1357 conditions per place. [2024-11-09 15:15:12,519 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 18 changer transitions 18/139 dead transitions. [2024-11-09 15:15:12,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 139 transitions, 923 flow [2024-11-09 15:15:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:15:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:15:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-11-09 15:15:12,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-11-09 15:15:12,521 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 309 flow. Second operand 8 states and 170 transitions. [2024-11-09 15:15:12,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 139 transitions, 923 flow [2024-11-09 15:15:12,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 139 transitions, 923 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:15:12,535 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 576 flow [2024-11-09 15:15:12,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=576, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-11-09 15:15:12,539 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2024-11-09 15:15:12,539 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 576 flow [2024-11-09 15:15:12,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:12,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:12,539 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:15:12,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 15:15:12,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:12,740 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:12,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 736662151, now seen corresponding path program 2 times [2024-11-09 15:15:12,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:12,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032383592] [2024-11-09 15:15:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:12,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:12,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:12,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032383592] [2024-11-09 15:15:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032383592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:12,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524320169] [2024-11-09 15:15:12,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:15:12,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:12,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:12,920 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:12,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:15:12,986 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:15:12,986 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:15:12,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:15:12,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:15:13,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:13,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:15:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524320169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:13,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:13,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-09 15:15:13,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922897652] [2024-11-09 15:15:13,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:13,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:15:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:15:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:15:13,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2024-11-09 15:15:13,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 576 flow. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:13,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:13,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2024-11-09 15:15:13,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:13,627 INFO L124 PetriNetUnfolderBase]: 1825/3105 cut-off events. [2024-11-09 15:15:13,627 INFO L125 PetriNetUnfolderBase]: For 7926/7926 co-relation queries the response was YES. [2024-11-09 15:15:13,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9520 conditions, 3105 events. 1825/3105 cut-off events. For 7926/7926 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16945 event pairs, 1563 based on Foata normal form. 2/2667 useless extension candidates. Maximal degree in co-relation 9465. Up to 3084 conditions per place. [2024-11-09 15:15:13,647 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 47 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2024-11-09 15:15:13,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 714 flow [2024-11-09 15:15:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:15:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:15:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 110 transitions. [2024-11-09 15:15:13,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1870748299319728 [2024-11-09 15:15:13,649 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 576 flow. Second operand 14 states and 110 transitions. [2024-11-09 15:15:13,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 714 flow [2024-11-09 15:15:13,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 692 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-09 15:15:13,667 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 598 flow [2024-11-09 15:15:13,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=598, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-09 15:15:13,669 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2024-11-09 15:15:13,669 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 598 flow [2024-11-09 15:15:13,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:13,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:13,670 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2024-11-09 15:15:13,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:15:13,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:13,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:13,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:13,875 INFO L85 PathProgramCache]: Analyzing trace with hash 504756521, now seen corresponding path program 2 times [2024-11-09 15:15:13,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:13,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294809529] [2024-11-09 15:15:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:13,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:14,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294809529] [2024-11-09 15:15:14,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294809529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014287419] [2024-11-09 15:15:14,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:15:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:14,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:14,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:14,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:15:14,077 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:15:14,078 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:15:14,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:15:14,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 15:15:14,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:15:14,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014287419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:14,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:15:14,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-11-09 15:15:14,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022241332] [2024-11-09 15:15:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:14,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:15:14,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:15:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:15:14,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:14,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:14,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:14,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:14,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:14,455 INFO L124 PetriNetUnfolderBase]: 1668/2868 cut-off events. [2024-11-09 15:15:14,455 INFO L125 PetriNetUnfolderBase]: For 7564/7564 co-relation queries the response was YES. [2024-11-09 15:15:14,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8213 conditions, 2868 events. 1668/2868 cut-off events. For 7564/7564 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 15648 event pairs, 1472 based on Foata normal form. 122/2558 useless extension candidates. Maximal degree in co-relation 8104. Up to 2859 conditions per place. [2024-11-09 15:15:14,472 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 59 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-11-09 15:15:14,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 634 flow [2024-11-09 15:15:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:15:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:15:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-09 15:15:14,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-11-09 15:15:14,473 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 598 flow. Second operand 3 states and 44 transitions. [2024-11-09 15:15:14,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 634 flow [2024-11-09 15:15:14,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 547 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-11-09 15:15:14,485 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 429 flow [2024-11-09 15:15:14,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-09 15:15:14,486 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-11-09 15:15:14,486 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 429 flow [2024-11-09 15:15:14,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:14,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:14,486 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:14,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 15:15:14,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:14,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:14,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1905796755, now seen corresponding path program 1 times [2024-11-09 15:15:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068110717] [2024-11-09 15:15:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:14,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 15:15:14,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:14,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068110717] [2024-11-09 15:15:14,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068110717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:14,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:14,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:15:14,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129399052] [2024-11-09 15:15:14,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:14,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:15:14,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:15:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:15:14,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:14,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 429 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:14,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:14,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:14,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:15,217 INFO L124 PetriNetUnfolderBase]: 1735/3004 cut-off events. [2024-11-09 15:15:15,217 INFO L125 PetriNetUnfolderBase]: For 5626/5626 co-relation queries the response was YES. [2024-11-09 15:15:15,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8393 conditions, 3004 events. 1735/3004 cut-off events. For 5626/5626 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 16270 event pairs, 1540 based on Foata normal form. 12/2561 useless extension candidates. Maximal degree in co-relation 8369. Up to 2857 conditions per place. [2024-11-09 15:15:15,232 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 57 selfloop transitions, 2 changer transitions 14/76 dead transitions. [2024-11-09 15:15:15,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 605 flow [2024-11-09 15:15:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:15:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:15:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-09 15:15:15,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-09 15:15:15,235 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 429 flow. Second operand 4 states and 66 transitions. [2024-11-09 15:15:15,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 605 flow [2024-11-09 15:15:15,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:15,245 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 432 flow [2024-11-09 15:15:15,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=432, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-11-09 15:15:15,246 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 28 predicate places. [2024-11-09 15:15:15,246 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 432 flow [2024-11-09 15:15:15,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:15,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:15,246 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:15,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:15:15,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:15,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 454518985, now seen corresponding path program 1 times [2024-11-09 15:15:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121405580] [2024-11-09 15:15:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:15,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:15,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121405580] [2024-11-09 15:15:15,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121405580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:15,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339390140] [2024-11-09 15:15:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:15,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:15,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:15,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:15,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:15:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:15,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:15:15,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:15,553 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:15,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:15,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339390140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:15,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 13 [2024-11-09 15:15:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912509284] [2024-11-09 15:15:15,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:15,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 15:15:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 15:15:15,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=109, Unknown=0, NotChecked=0, Total=210 [2024-11-09 15:15:15,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:15,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 432 flow. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:15,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:15,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:15,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:16,625 INFO L124 PetriNetUnfolderBase]: 4852/8292 cut-off events. [2024-11-09 15:15:16,625 INFO L125 PetriNetUnfolderBase]: For 19440/19440 co-relation queries the response was YES. [2024-11-09 15:15:16,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22341 conditions, 8292 events. 4852/8292 cut-off events. For 19440/19440 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 45460 event pairs, 1243 based on Foata normal form. 408/7421 useless extension candidates. Maximal degree in co-relation 22315. Up to 1535 conditions per place. [2024-11-09 15:15:16,675 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 165 selfloop transitions, 51 changer transitions 42/261 dead transitions. [2024-11-09 15:15:16,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 261 transitions, 1925 flow [2024-11-09 15:15:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:15:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:15:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 287 transitions. [2024-11-09 15:15:16,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-09 15:15:16,679 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 432 flow. Second operand 14 states and 287 transitions. [2024-11-09 15:15:16,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 261 transitions, 1925 flow [2024-11-09 15:15:16,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 261 transitions, 1919 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-09 15:15:16,716 INFO L231 Difference]: Finished difference. Result has 84 places, 101 transitions, 1068 flow [2024-11-09 15:15:16,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1068, PETRI_PLACES=84, PETRI_TRANSITIONS=101} [2024-11-09 15:15:16,718 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 44 predicate places. [2024-11-09 15:15:16,718 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 101 transitions, 1068 flow [2024-11-09 15:15:16,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:16,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:16,718 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:16,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:15:16,919 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 [2024-11-09 15:15:16,919 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:16,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:16,920 INFO L85 PathProgramCache]: Analyzing trace with hash -7735982, now seen corresponding path program 1 times [2024-11-09 15:15:16,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:16,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735620167] [2024-11-09 15:15:16,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:16,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 15:15:17,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:17,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735620167] [2024-11-09 15:15:17,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735620167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:17,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:17,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:15:17,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630051545] [2024-11-09 15:15:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:17,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:15:17,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:15:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:15:17,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:17,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 101 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:17,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:17,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:17,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:17,939 INFO L124 PetriNetUnfolderBase]: 4820/8247 cut-off events. [2024-11-09 15:15:17,939 INFO L125 PetriNetUnfolderBase]: For 22586/22586 co-relation queries the response was YES. [2024-11-09 15:15:17,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23811 conditions, 8247 events. 4820/8247 cut-off events. For 22586/22586 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 47423 event pairs, 4273 based on Foata normal form. 26/6996 useless extension candidates. Maximal degree in co-relation 23779. Up to 8238 conditions per place. [2024-11-09 15:15:17,992 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 92 selfloop transitions, 1 changer transitions 3/99 dead transitions. [2024-11-09 15:15:17,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 99 transitions, 1218 flow [2024-11-09 15:15:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:15:17,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:15:17,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-09 15:15:17,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-09 15:15:17,993 INFO L175 Difference]: Start difference. First operand has 84 places, 101 transitions, 1068 flow. Second operand 3 states and 42 transitions. [2024-11-09 15:15:17,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 99 transitions, 1218 flow [2024-11-09 15:15:18,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 1163 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-09 15:15:18,052 INFO L231 Difference]: Finished difference. Result has 81 places, 96 transitions, 966 flow [2024-11-09 15:15:18,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=966, PETRI_PLACES=81, PETRI_TRANSITIONS=96} [2024-11-09 15:15:18,053 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 41 predicate places. [2024-11-09 15:15:18,053 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 96 transitions, 966 flow [2024-11-09 15:15:18,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:18,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:18,054 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:18,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:15:18,054 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:18,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash -267872235, now seen corresponding path program 2 times [2024-11-09 15:15:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:18,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125735852] [2024-11-09 15:15:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:18,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:18,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:18,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125735852] [2024-11-09 15:15:18,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125735852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:18,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838223572] [2024-11-09 15:15:18,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:15:18,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:18,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:18,408 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:18,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 15:15:18,505 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:15:18,505 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:15:18,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 15:15:18,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:18,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838223572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:18,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:18,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 28 [2024-11-09 15:15:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438158011] [2024-11-09 15:15:18,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:18,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 15:15:18,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 15:15:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=470, Unknown=0, NotChecked=0, Total=870 [2024-11-09 15:15:18,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:18,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 96 transitions, 966 flow. Second operand has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:18,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:18,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:18,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:20,787 INFO L124 PetriNetUnfolderBase]: 7354/12390 cut-off events. [2024-11-09 15:15:20,787 INFO L125 PetriNetUnfolderBase]: For 85076/85076 co-relation queries the response was YES. [2024-11-09 15:15:20,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38388 conditions, 12390 events. 7354/12390 cut-off events. For 85076/85076 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61388 event pairs, 1172 based on Foata normal form. 710/12114 useless extension candidates. Maximal degree in co-relation 38356. Up to 2450 conditions per place. [2024-11-09 15:15:20,863 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 398 selfloop transitions, 163 changer transitions 16/580 dead transitions. [2024-11-09 15:15:20,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 580 transitions, 4925 flow [2024-11-09 15:15:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 15:15:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-09 15:15:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 684 transitions. [2024-11-09 15:15:20,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40714285714285714 [2024-11-09 15:15:20,868 INFO L175 Difference]: Start difference. First operand has 81 places, 96 transitions, 966 flow. Second operand 40 states and 684 transitions. [2024-11-09 15:15:20,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 580 transitions, 4925 flow [2024-11-09 15:15:20,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 580 transitions, 4924 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:20,982 INFO L231 Difference]: Finished difference. Result has 142 places, 208 transitions, 2919 flow [2024-11-09 15:15:20,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=965, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2919, PETRI_PLACES=142, PETRI_TRANSITIONS=208} [2024-11-09 15:15:20,983 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 102 predicate places. [2024-11-09 15:15:20,983 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 208 transitions, 2919 flow [2024-11-09 15:15:20,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.7) internal successors, (321), 30 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:20,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:20,984 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:21,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 15:15:21,184 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,SelfDestructingSolverStorable13 [2024-11-09 15:15:21,185 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 15:15:21,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:21,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1714498811, now seen corresponding path program 3 times [2024-11-09 15:15:21,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:21,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666263867] [2024-11-09 15:15:21,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:21,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:15:22,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:22,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666263867] [2024-11-09 15:15:22,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666263867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:22,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081927640] [2024-11-09 15:15:22,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 15:15:22,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:22,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:22,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:15:22,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 15:15:22,116 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 15:15:22,117 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:15:22,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:15:22,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-09 15:15:22,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-09 15:15:22,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081927640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:22,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:22,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 2, 2] total 21 [2024-11-09 15:15:22,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913971190] [2024-11-09 15:15:22,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:22,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:15:22,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:15:22,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:15:22,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-09 15:15:22,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 208 transitions, 2919 flow. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:22,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:22,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-09 15:15:22,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:24,692 INFO L124 PetriNetUnfolderBase]: 7656/12898 cut-off events. [2024-11-09 15:15:24,692 INFO L125 PetriNetUnfolderBase]: For 103182/103182 co-relation queries the response was YES. [2024-11-09 15:15:24,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45347 conditions, 12898 events. 7656/12898 cut-off events. For 103182/103182 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 63647 event pairs, 1554 based on Foata normal form. 140/12012 useless extension candidates. Maximal degree in co-relation 45288. Up to 2550 conditions per place. [2024-11-09 15:15:24,746 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 461/461 dead transitions. [2024-11-09 15:15:24,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 461 transitions, 5634 flow [2024-11-09 15:15:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 15:15:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-09 15:15:24,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 380 transitions. [2024-11-09 15:15:24,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41125541125541126 [2024-11-09 15:15:24,749 INFO L175 Difference]: Start difference. First operand has 142 places, 208 transitions, 2919 flow. Second operand 22 states and 380 transitions. [2024-11-09 15:15:24,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 461 transitions, 5634 flow [2024-11-09 15:15:25,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 461 transitions, 4891 flow, removed 177 selfloop flow, removed 29 redundant places. [2024-11-09 15:15:25,259 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2024-11-09 15:15:25,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2024-11-09 15:15:25,260 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 93 predicate places. [2024-11-09 15:15:25,260 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2024-11-09 15:15:25,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:15:25,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-11-09 15:15:25,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-11-09 15:15:25,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-09 15:15:25,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-09 15:15:25,264 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2024-11-09 15:15:25,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-09 15:15:25,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-11-09 15:15:25,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-09 15:15:25,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-09 15:15:25,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-11-09 15:15:25,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-09 15:15:25,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-09 15:15:25,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 15:15:25,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 15:15:25,468 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:15:25,473 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:15:25,473 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:15:25,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:15:25 BasicIcfg [2024-11-09 15:15:25,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:15:25,478 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:15:25,478 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:15:25,481 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:15:25,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:07" (3/4) ... [2024-11-09 15:15:25,483 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:15:25,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:15:25,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:15:25,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-09 15:15:25,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 15:15:25,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 15:15:25,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:15:25,577 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:15:25,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:15:25,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:15:25,579 INFO L158 Benchmark]: Toolchain (without parser) took 19024.88ms. Allocated memory was 165.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 130.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 490.5MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,579 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 165.7MB. Free memory was 128.8MB in the beginning and 128.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:15:25,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.21ms. Allocated memory is still 165.7MB. Free memory was 130.9MB in the beginning and 117.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.42ms. Allocated memory is still 165.7MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,580 INFO L158 Benchmark]: Boogie Preprocessor took 69.62ms. Allocated memory is still 165.7MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,580 INFO L158 Benchmark]: RCFGBuilder took 818.19ms. Allocated memory is still 165.7MB. Free memory was 113.4MB in the beginning and 90.9MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,580 INFO L158 Benchmark]: TraceAbstraction took 17665.02ms. Allocated memory was 165.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 89.8MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 588.8MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,580 INFO L158 Benchmark]: Witness Printer took 100.06ms. Allocated memory is still 2.2GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:15:25,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 165.7MB. Free memory was 128.8MB in the beginning and 128.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.21ms. Allocated memory is still 165.7MB. Free memory was 130.9MB in the beginning and 117.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.42ms. Allocated memory is still 165.7MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.62ms. Allocated memory is still 165.7MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 818.19ms. Allocated memory is still 165.7MB. Free memory was 113.4MB in the beginning and 90.9MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 17665.02ms. Allocated memory was 165.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 89.8MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 588.8MB. Max. memory is 16.1GB. * Witness Printer took 100.06ms. Allocated memory is still 2.2GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 64 locations, 28 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: 17.5s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1626 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1616 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1770 IncrementalHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 1 mSDtfsCounter, 1770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 500 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2919occurred in iteration=14, InterpolantAutomatonStates: 144, 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, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 505 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 2889 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 1112/2219 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:15:25,612 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