./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix022_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:50:32,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:50:32,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:50:32,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:50:32,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:50:32,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:50:32,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:50:32,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:50:32,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:50:32,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:50:32,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:50:32,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:50:32,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:50:32,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:50:32,898 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:50:32,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:50:32,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:50:32,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:50:32,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:50:32,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:50:32,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:50:32,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:50:32,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:50:32,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:50:32,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:50:32,906 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:50:32,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:50:32,906 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:50:32,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:50:32,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:50:32,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:50:32,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:50:32,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:50:32,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:50:32,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:50:32,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:50:32,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:50:32,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:50:32,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:50:32,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:50:32,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:50:32,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:50:32,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:50:32,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:50:32,913 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 [2024-10-11 23:50:33,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:50:33,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:50:33,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:50:33,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:50:33,194 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:50:33,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2024-10-11 23:50:34,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:50:34,894 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:50:34,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2024-10-11 23:50:34,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5a3efd043/2d5e441147a94c9b88265ab850652b19/FLAGf3d4be188 [2024-10-11 23:50:35,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5a3efd043/2d5e441147a94c9b88265ab850652b19 [2024-10-11 23:50:35,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:50:35,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:50:35,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:50:35,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:50:35,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:50:35,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d358eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35, skipping insertion in model container [2024-10-11 23:50:35,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:50:35,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:50:35,745 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:50:35,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:50:35,853 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:50:35,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35 WrapperNode [2024-10-11 23:50:35,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:50:35,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:50:35,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:50:35,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:50:35,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,929 INFO L138 Inliner]: procedures = 174, calls = 36, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2024-10-11 23:50:35,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:50:35,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:50:35,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:50:35,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:50:35,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,976 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]. [2024-10-11 23:50:35,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:35,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:36,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:36,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:50:36,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:50:36,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:50:36,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:50:36,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (1/1) ... [2024-10-11 23:50:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:50:36,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:50:36,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:50:36,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:50:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 23:50:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:50:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 23:50:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 23:50:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 23:50:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 23:50:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:50:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 23:50:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:50:36,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:50:36,094 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:50:36,233 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:50:36,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:50:36,582 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:50:36,582 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:50:36,875 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:50:36,875 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:50:36,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:36 BoogieIcfgContainer [2024-10-11 23:50:36,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:50:36,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:50:36,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:50:36,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:50:36,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:50:35" (1/3) ... [2024-10-11 23:50:36,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28740148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:50:36, skipping insertion in model container [2024-10-11 23:50:36,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:50:35" (2/3) ... [2024-10-11 23:50:36,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28740148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:50:36, skipping insertion in model container [2024-10-11 23:50:36,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:36" (3/3) ... [2024-10-11 23:50:36,886 INFO L112 eAbstractionObserver]: Analyzing ICFG mix022_tso.i [2024-10-11 23:50:36,904 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:50:36,905 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-11 23:50:36,905 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:50:36,953 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 23:50:36,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 66 flow [2024-10-11 23:50:37,013 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-10-11 23:50:37,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:50:37,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-11 23:50:37,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 29 transitions, 66 flow [2024-10-11 23:50:37,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 60 flow [2024-10-11 23:50:37,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:50:37,035 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;@2b20a65f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:50:37,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 23:50:37,043 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:50:37,043 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-10-11 23:50:37,043 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:50:37,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:37,045 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:37,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:50:37,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:37,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1331190467, now seen corresponding path program 1 times [2024-10-11 23:50:37,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:37,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573135724] [2024-10-11 23:50:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:37,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573135724] [2024-10-11 23:50:37,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573135724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:37,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:37,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 23:50:37,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765721160] [2024-10-11 23:50:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:37,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:50:37,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:37,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:50:37,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:50:37,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-11 23:50:37,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 60 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) [2024-10-11 23:50:37,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:37,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-11 23:50:37,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:37,737 INFO L124 PetriNetUnfolderBase]: 275/491 cut-off events. [2024-10-11 23:50:37,741 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 23:50:37,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 491 events. 275/491 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2290 event pairs, 91 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 971. Up to 369 conditions per place. [2024-10-11 23:50:37,754 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 29 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-10-11 23:50:37,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 157 flow [2024-10-11 23:50:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:50:37,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:50:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-10-11 23:50:37,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7126436781609196 [2024-10-11 23:50:37,768 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 60 flow. Second operand 3 states and 62 transitions. [2024-10-11 23:50:37,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 157 flow [2024-10-11 23:50:37,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:50:37,774 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 75 flow [2024-10-11 23:50:37,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-10-11 23:50:37,779 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-10-11 23:50:37,781 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 75 flow [2024-10-11 23:50:37,781 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) [2024-10-11 23:50:37,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:37,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:37,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:50:37,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:50:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2015209436, now seen corresponding path program 1 times [2024-10-11 23:50:37,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:37,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526119586] [2024-10-11 23:50:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:37,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:38,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:38,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526119586] [2024-10-11 23:50:38,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526119586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:38,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:38,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:50:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714302676] [2024-10-11 23:50:38,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:38,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:50:38,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:38,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:50:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:50:38,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-11 23:50:38,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:50:38,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:38,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-11 23:50:38,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:38,199 INFO L124 PetriNetUnfolderBase]: 199/367 cut-off events. [2024-10-11 23:50:38,200 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-10-11 23:50:38,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 367 events. 199/367 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1755 event pairs, 67 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 823. Up to 244 conditions per place. [2024-10-11 23:50:38,205 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 27 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-10-11 23:50:38,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 151 flow [2024-10-11 23:50:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:50:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:50:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2024-10-11 23:50:38,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-10-11 23:50:38,208 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 75 flow. Second operand 4 states and 64 transitions. [2024-10-11 23:50:38,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 151 flow [2024-10-11 23:50:38,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:50:38,211 INFO L231 Difference]: Finished difference. Result has 35 places, 25 transitions, 70 flow [2024-10-11 23:50:38,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2024-10-11 23:50:38,212 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-10-11 23:50:38,212 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 70 flow [2024-10-11 23:50:38,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:50:38,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:50:38,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:50:38,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:50:38,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:50:38,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:50:38,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2015209435, now seen corresponding path program 1 times [2024-10-11 23:50:38,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:50:38,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220570322] [2024-10-11 23:50:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:50:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:50:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:50:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:50:38,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:50:38,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220570322] [2024-10-11 23:50:38,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220570322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:50:38,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:50:38,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:50:38,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141896212] [2024-10-11 23:50:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:50:38,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:50:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:50:38,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:50:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:50:38,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-11 23:50:38,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:50:38,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:50:38,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-11 23:50:38,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:50:38,502 INFO L124 PetriNetUnfolderBase]: 167/311 cut-off events. [2024-10-11 23:50:38,503 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-10-11 23:50:38,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 311 events. 167/311 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1546 event pairs, 55 based on Foata normal form. 24/333 useless extension candidates. Maximal degree in co-relation 687. Up to 188 conditions per place. [2024-10-11 23:50:38,506 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-10-11 23:50:38,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 142 flow [2024-10-11 23:50:38,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:50:38,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:50:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2024-10-11 23:50:38,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-10-11 23:50:38,507 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 70 flow. Second operand 4 states and 62 transitions. [2024-10-11 23:50:38,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 142 flow [2024-10-11 23:50:38,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 135 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:50:38,509 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-10-11 23:50:38,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-10-11 23:50:38,509 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2024-10-11 23:50:38,510 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-10-11 23:50:38,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:50:38,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-11 23:50:38,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-11 23:50:38,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-11 23:50:38,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-11 23:50:38,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-10-11 23:50:38,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-10-11 23:50:38,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-11 23:50:38,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-11 23:50:38,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-11 23:50:38,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-11 23:50:38,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:50:38,518 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 23:50:38,525 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 23:50:38,526 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:50:38,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:50:38 BasicIcfg [2024-10-11 23:50:38,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:50:38,532 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:50:38,532 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:50:38,532 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:50:38,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:50:36" (3/4) ... [2024-10-11 23:50:38,534 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 23:50:38,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 23:50:38,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 23:50:38,544 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 80 nodes and edges [2024-10-11 23:50:38,545 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-11 23:50:38,545 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 23:50:38,545 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 23:50:38,648 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 23:50:38,649 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 23:50:38,649 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:50:38,649 INFO L158 Benchmark]: Toolchain (without parser) took 3418.10ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 100.8MB in the beginning and 126.6MB in the end (delta: -25.8MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,649 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 159.4MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:50:38,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.65ms. Allocated memory is still 159.4MB. Free memory was 100.8MB in the beginning and 73.7MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.82ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,650 INFO L158 Benchmark]: Boogie Preprocessor took 73.37ms. Allocated memory is still 159.4MB. Free memory was 70.3MB in the beginning and 66.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,650 INFO L158 Benchmark]: RCFGBuilder took 868.38ms. Allocated memory is still 159.4MB. Free memory was 66.5MB in the beginning and 91.1MB in the end (delta: -24.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,651 INFO L158 Benchmark]: TraceAbstraction took 1652.92ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 90.3MB in the beginning and 130.7MB in the end (delta: -40.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,651 INFO L158 Benchmark]: Witness Printer took 116.77ms. Allocated memory is still 224.4MB. Free memory was 130.7MB in the beginning and 126.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:50:38,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 159.4MB. Free memory is still 121.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.65ms. Allocated memory is still 159.4MB. Free memory was 100.8MB in the beginning and 73.7MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.82ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.37ms. Allocated memory is still 159.4MB. Free memory was 70.3MB in the beginning and 66.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 868.38ms. Allocated memory is still 159.4MB. Free memory was 66.5MB in the beginning and 91.1MB in the end (delta: -24.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1652.92ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 90.3MB in the beginning and 130.7MB in the end (delta: -40.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Witness Printer took 116.77ms. Allocated memory is still 224.4MB. Free memory was 130.7MB in the beginning and 126.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 751]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: 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, 51 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: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 143 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=75occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 23:50:38,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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