./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 e1d84228246cc640f111b0bf0907a0ec6838e3ee0e70770c8d77ae15dd23f4db --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:38:32,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:38:32,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:38:32,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:38:32,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:38:32,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:38:32,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:38:32,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:38:32,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:38:32,501 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:38:32,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:38:32,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:38:32,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:38:32,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:38:32,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:38:32,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:38:32,503 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:38:32,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:32,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:32,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:38:32,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:38:32,505 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> e1d84228246cc640f111b0bf0907a0ec6838e3ee0e70770c8d77ae15dd23f4db [2025-01-10 06:38:32,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:38:32,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:38:32,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:38:32,759 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:38:32,759 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:38:32,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi008.oepc.i [2025-01-10 06:38:34,004 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a87b0383d/3836d22f90d94776801c9a51dfff9c20/FLAG75784b98b [2025-01-10 06:38:34,314 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:38:34,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi008.oepc.i [2025-01-10 06:38:34,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a87b0383d/3836d22f90d94776801c9a51dfff9c20/FLAG75784b98b [2025-01-10 06:38:34,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a87b0383d/3836d22f90d94776801c9a51dfff9c20 [2025-01-10 06:38:34,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:38:34,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:38:34,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:38:34,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:38:34,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:38:34,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22851124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34, skipping insertion in model container [2025-01-10 06:38:34,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:38:34,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:38:34,666 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:38:34,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:38:34,785 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:38:34,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34 WrapperNode [2025-01-10 06:38:34,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:38:34,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:38:34,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:38:34,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:38:34,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,846 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2025-01-10 06:38:34,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:38:34,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:38:34,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:38:34,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:38:34,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,887 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:38:34,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,901 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:38:34,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:38:34,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:38:34,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:38:34,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (1/1) ... [2025-01-10 06:38:34,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:34,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:38:34,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:38:34,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:38:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:38:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:38:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-10 06:38:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-10 06:38:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-10 06:38:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-10 06:38:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:38:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:38:34,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:38:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:38:34,986 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:38:35,096 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:38:35,097 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:38:35,342 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:38:35,342 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:38:35,526 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:38:35,526 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:38:35,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:35 BoogieIcfgContainer [2025-01-10 06:38:35,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:38:35,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:38:35,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:38:35,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:38:35,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:38:34" (1/3) ... [2025-01-10 06:38:35,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dfabca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:38:35, skipping insertion in model container [2025-01-10 06:38:35,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:34" (2/3) ... [2025-01-10 06:38:35,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dfabca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:38:35, skipping insertion in model container [2025-01-10 06:38:35,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:35" (3/3) ... [2025-01-10 06:38:35,537 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi008.oepc.i [2025-01-10 06:38:35,546 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:38:35,548 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi008.oepc.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:38:35,549 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:38:35,595 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:38:35,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2025-01-10 06:38:35,648 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-01-10 06:38:35,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:38:35,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:38:35,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2025-01-10 06:38:35,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2025-01-10 06:38:35,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:38:35,676 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;@7b1badf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:38:35,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-01-10 06:38:35,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:38:35,687 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-01-10 06:38:35,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:38:35,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:35,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:35,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:38:35,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1170171749, now seen corresponding path program 1 times [2025-01-10 06:38:35,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:35,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152255723] [2025-01-10 06:38:35,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:35,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:38:35,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:38:35,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:35,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152255723] [2025-01-10 06:38:35,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152255723] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:35,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:35,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:38:35,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479063481] [2025-01-10 06:38:35,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:35,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:38:35,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:36,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:38:36,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:38:36,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 06:38:36,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-01-10 06:38:36,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:36,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 06:38:36,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:36,260 INFO L124 PetriNetUnfolderBase]: 278/508 cut-off events. [2025-01-10 06:38:36,261 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-10 06:38:36,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 508 events. 278/508 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2412 event pairs, 110 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 997. Up to 333 conditions per place. [2025-01-10 06:38:36,273 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 29 selfloop transitions, 3 changer transitions 2/41 dead transitions. [2025-01-10 06:38:36,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 159 flow [2025-01-10 06:38:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:38:36,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:38:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-01-10 06:38:36,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2025-01-10 06:38:36,282 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 65 transitions. [2025-01-10 06:38:36,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 159 flow [2025-01-10 06:38:36,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:38:36,287 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2025-01-10 06:38:36,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2025-01-10 06:38:36,290 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2025-01-10 06:38:36,291 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2025-01-10 06:38:36,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-01-10 06:38:36,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:36,291 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:36,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:38:36,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:38:36,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1114846892, now seen corresponding path program 1 times [2025-01-10 06:38:36,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:36,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570512742] [2025-01-10 06:38:36,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:36,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:38:36,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:38:36,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:36,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:36,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570512742] [2025-01-10 06:38:36,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570512742] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:36,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:36,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:38:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632818868] [2025-01-10 06:38:36,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:36,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:38:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:36,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:38:36,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:38:36,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 06:38:36,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-01-10 06:38:36,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:36,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 06:38:36,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:36,765 INFO L124 PetriNetUnfolderBase]: 216/406 cut-off events. [2025-01-10 06:38:36,765 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-01-10 06:38:36,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 406 events. 216/406 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1930 event pairs, 90 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 887. Up to 230 conditions per place. [2025-01-10 06:38:36,769 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 27 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2025-01-10 06:38:36,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 153 flow [2025-01-10 06:38:36,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:38:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:38:36,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2025-01-10 06:38:36,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-01-10 06:38:36,770 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 68 transitions. [2025-01-10 06:38:36,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 153 flow [2025-01-10 06:38:36,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:38:36,772 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2025-01-10 06:38:36,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2025-01-10 06:38:36,772 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2025-01-10 06:38:36,772 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2025-01-10 06:38:36,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-01-10 06:38:36,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:36,773 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:36,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:38:36,773 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:38:36,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1114846891, now seen corresponding path program 1 times [2025-01-10 06:38:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:36,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790470936] [2025-01-10 06:38:36,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:36,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:36,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:38:36,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:38:36,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:36,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:36,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:36,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790470936] [2025-01-10 06:38:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790470936] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:36,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:36,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:38:36,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766685932] [2025-01-10 06:38:36,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:36,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:38:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:36,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:38:36,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:38:36,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2025-01-10 06:38:36,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-01-10 06:38:36,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:36,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2025-01-10 06:38:36,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:37,086 INFO L124 PetriNetUnfolderBase]: 190/360 cut-off events. [2025-01-10 06:38:37,086 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2025-01-10 06:38:37,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 360 events. 190/360 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1687 event pairs, 80 based on Foata normal form. 20/371 useless extension candidates. Maximal degree in co-relation 775. Up to 184 conditions per place. [2025-01-10 06:38:37,088 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2025-01-10 06:38:37,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 144 flow [2025-01-10 06:38:37,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:38:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:38:37,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-01-10 06:38:37,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-01-10 06:38:37,092 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 66 transitions. [2025-01-10 06:38:37,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 144 flow [2025-01-10 06:38:37,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:38:37,094 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2025-01-10 06:38:37,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2025-01-10 06:38:37,094 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2025-01-10 06:38:37,095 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2025-01-10 06:38:37,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-01-10 06:38:37,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2025-01-10 06:38:37,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2025-01-10 06:38:37,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2025-01-10 06:38:37,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2025-01-10 06:38:37,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:38:37,100 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-10 06:38:37,103 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:38:37,103 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:38:37,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:38:37 BasicIcfg [2025-01-10 06:38:37,110 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:38:37,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:38:37,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:38:37,111 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:38:37,111 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:35" (3/4) ... [2025-01-10 06:38:37,113 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:38:37,115 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-10 06:38:37,115 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-10 06:38:37,118 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2025-01-10 06:38:37,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-01-10 06:38:37,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-10 06:38:37,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:38:37,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:38:37,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:38:37,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:38:37,176 INFO L158 Benchmark]: Toolchain (without parser) took 2815.16ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 51.7MB in the end (delta: 58.2MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2025-01-10 06:38:37,176 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 201.3MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:38:37,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.93ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 85.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:38:37,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.52ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:38:37,177 INFO L158 Benchmark]: Boogie Preprocessor took 66.73ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 80.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:38:37,178 INFO L158 Benchmark]: RCFGBuilder took 609.15ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 94.4MB in the end (delta: -14.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2025-01-10 06:38:37,178 INFO L158 Benchmark]: TraceAbstraction took 1580.59ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 57.5MB in the end (delta: 36.2MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2025-01-10 06:38:37,178 INFO L158 Benchmark]: Witness Printer took 63.81ms. Allocated memory is still 142.6MB. Free memory was 57.5MB in the beginning and 51.7MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:38:37,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 201.3MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.93ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 85.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.52ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.73ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 80.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 609.15ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 94.4MB in the end (delta: -14.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1580.59ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 57.5MB in the end (delta: 36.2MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Witness Printer took 63.81ms. Allocated memory is still 142.6MB. Free memory was 57.5MB in the beginning and 51.7MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: 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, 53 locations, 10 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: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 11, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:38:37,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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