./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix003.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/mix003.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 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:55:37,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:55:37,983 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 13:55:37,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:55:37,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:55:38,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:55:38,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:55:38,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:55:38,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:55:38,017 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:55:38,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:55:38,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:55:38,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:55:38,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:55:38,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:55:38,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:55:38,019 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:55:38,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:55:38,020 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:55:38,020 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:55:38,020 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:55:38,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:55:38,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:55:38,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:55:38,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:55:38,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:55:38,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:55:38,022 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 -> 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 [2025-02-08 13:55:38,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:55:38,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:55:38,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:55:38,302 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:55:38,303 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:55:38,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2025-02-08 13:55:39,599 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9faeb08d/2b4cb4224e404e198597096422442332/FLAG4b8c21cc8 [2025-02-08 13:55:39,962 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:55:39,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2025-02-08 13:55:39,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9faeb08d/2b4cb4224e404e198597096422442332/FLAG4b8c21cc8 [2025-02-08 13:55:40,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9faeb08d/2b4cb4224e404e198597096422442332 [2025-02-08 13:55:40,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:55:40,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:55:40,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:55:40,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:55:40,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:55:40,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234288ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40, skipping insertion in model container [2025-02-08 13:55:40,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:55:40,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:55:40,462 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:55:40,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:55:40,592 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:55:40,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40 WrapperNode [2025-02-08 13:55:40,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:55:40,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:55:40,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:55:40,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:55:40,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,656 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 124 [2025-02-08 13:55:40,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:55:40,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:55:40,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:55:40,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:55:40,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,701 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]. [2025-02-08 13:55:40,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,709 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:55:40,728 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:55:40,728 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:55:40,728 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:55:40,732 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (1/1) ... [2025-02-08 13:55:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:55:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:55:40,770 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) [2025-02-08 13:55:40,777 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 [2025-02-08 13:55:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 13:55:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:55:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 13:55:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 13:55:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 13:55:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 13:55:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 13:55:40,798 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 13:55:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 13:55:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 13:55:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:55:40,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:55:40,800 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 13:55:40,927 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:55:40,929 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:55:41,266 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:55:41,266 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:55:41,479 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:55:41,479 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:55:41,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:55:41 BoogieIcfgContainer [2025-02-08 13:55:41,480 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:55:41,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:55:41,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:55:41,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:55:41,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:55:40" (1/3) ... [2025-02-08 13:55:41,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3fbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:55:41, skipping insertion in model container [2025-02-08 13:55:41,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:55:40" (2/3) ... [2025-02-08 13:55:41,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3fbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:55:41, skipping insertion in model container [2025-02-08 13:55:41,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:55:41" (3/3) ... [2025-02-08 13:55:41,489 INFO L128 eAbstractionObserver]: Analyzing ICFG mix003.oepc.i [2025-02-08 13:55:41,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:55:41,523 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix003.oepc.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-08 13:55:41,523 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:55:41,588 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 13:55:41,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2025-02-08 13:55:41,661 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-02-08 13:55:41,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:55:41,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 13:55:41,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2025-02-08 13:55:41,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2025-02-08 13:55:41,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 13:55:41,701 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;@422bbcd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 13:55:41,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-08 13:55:41,708 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 13:55:41,708 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-08 13:55:41,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:55:41,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:55:41,709 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:55:41,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:55:41,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:55:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash 500605222, now seen corresponding path program 1 times [2025-02-08 13:55:41,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:55:41,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576570382] [2025-02-08 13:55:41,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:55:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:55:41,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 13:55:41,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 13:55:41,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:55:41,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:55:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:55:42,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:55:42,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576570382] [2025-02-08 13:55:42,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576570382] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:55:42,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:55:42,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 13:55:42,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365617695] [2025-02-08 13:55:42,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:55:42,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:55:42,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:55:42,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:55:42,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:55:42,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-02-08 13:55:42,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-02-08 13:55:42,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:55:42,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-02-08 13:55:42,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:55:43,491 INFO L124 PetriNetUnfolderBase]: 7682/10982 cut-off events. [2025-02-08 13:55:43,491 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-02-08 13:55:43,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22074 conditions, 10982 events. 7682/10982 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 59704 event pairs, 2802 based on Foata normal form. 0/9672 useless extension candidates. Maximal degree in co-relation 22063. Up to 8611 conditions per place. [2025-02-08 13:55:43,628 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 55 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2025-02-08 13:55:43,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 257 flow [2025-02-08 13:55:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:55:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 13:55:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-08 13:55:43,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6747967479674797 [2025-02-08 13:55:43,641 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 83 transitions. [2025-02-08 13:55:43,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 257 flow [2025-02-08 13:55:43,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 252 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 13:55:43,649 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2025-02-08 13:55:43,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2025-02-08 13:55:43,654 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-02-08 13:55:43,655 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2025-02-08 13:55:43,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-02-08 13:55:43,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:55:43,655 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:55:43,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 13:55:43,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:55:43,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:55:43,656 INFO L85 PathProgramCache]: Analyzing trace with hash -912991143, now seen corresponding path program 1 times [2025-02-08 13:55:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:55:43,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012378112] [2025-02-08 13:55:43,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:55:43,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:55:43,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 13:55:43,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 13:55:43,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:55:43,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:55:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:55:43,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:55:43,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012378112] [2025-02-08 13:55:43,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012378112] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:55:43,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:55:43,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:55:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070469158] [2025-02-08 13:55:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:55:43,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:55:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:55:43,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:55:43,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:55:43,862 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-02-08 13:55:43,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:43,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:55:43,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-02-08 13:55:43,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:55:44,756 INFO L124 PetriNetUnfolderBase]: 6293/8983 cut-off events. [2025-02-08 13:55:44,757 INFO L125 PetriNetUnfolderBase]: For 575/575 co-relation queries the response was YES. [2025-02-08 13:55:44,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20154 conditions, 8983 events. 6293/8983 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 47463 event pairs, 2287 based on Foata normal form. 0/8409 useless extension candidates. Maximal degree in co-relation 20143. Up to 6611 conditions per place. [2025-02-08 13:55:44,824 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 52 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2025-02-08 13:55:44,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 264 flow [2025-02-08 13:55:44,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:55:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:55:44,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-02-08 13:55:44,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5060975609756098 [2025-02-08 13:55:44,826 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 83 transitions. [2025-02-08 13:55:44,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 264 flow [2025-02-08 13:55:44,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 13:55:44,831 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2025-02-08 13:55:44,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2025-02-08 13:55:44,832 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2025-02-08 13:55:44,832 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2025-02-08 13:55:44,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:44,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:55:44,833 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:55:44,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 13:55:44,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:55:44,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:55:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash -912991142, now seen corresponding path program 1 times [2025-02-08 13:55:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:55:44,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138512559] [2025-02-08 13:55:44,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:55:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:55:44,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 13:55:44,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 13:55:44,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:55:44,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:55:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:55:44,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:55:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138512559] [2025-02-08 13:55:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138512559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:55:44,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:55:44,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:55:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059553274] [2025-02-08 13:55:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:55:44,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:55:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:55:44,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:55:44,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:55:44,930 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-02-08 13:55:44,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:44,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:55:44,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-02-08 13:55:44,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:55:45,933 INFO L124 PetriNetUnfolderBase]: 5258/7506 cut-off events. [2025-02-08 13:55:45,933 INFO L125 PetriNetUnfolderBase]: For 1383/1383 co-relation queries the response was YES. [2025-02-08 13:55:45,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16625 conditions, 7506 events. 5258/7506 cut-off events. For 1383/1383 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 38812 event pairs, 1684 based on Foata normal form. 0/7416 useless extension candidates. Maximal degree in co-relation 16613. Up to 3226 conditions per place. [2025-02-08 13:55:45,967 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 71 selfloop transitions, 7 changer transitions 3/84 dead transitions. [2025-02-08 13:55:45,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 376 flow [2025-02-08 13:55:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:55:45,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:55:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2025-02-08 13:55:45,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6585365853658537 [2025-02-08 13:55:45,973 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 108 transitions. [2025-02-08 13:55:45,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 376 flow [2025-02-08 13:55:45,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 13:55:45,978 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2025-02-08 13:55:45,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2025-02-08 13:55:45,979 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2025-02-08 13:55:45,980 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2025-02-08 13:55:45,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:45,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:55:45,980 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:55:45,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 13:55:45,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:55:45,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:55:45,982 INFO L85 PathProgramCache]: Analyzing trace with hash 755072387, now seen corresponding path program 1 times [2025-02-08 13:55:45,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:55:45,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696890480] [2025-02-08 13:55:45,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:55:45,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:55:45,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 13:55:46,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 13:55:46,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:55:46,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:55:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:55:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:55:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696890480] [2025-02-08 13:55:46,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696890480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:55:46,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:55:46,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 13:55:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344872653] [2025-02-08 13:55:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:55:46,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 13:55:46,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:55:46,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 13:55:46,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:55:46,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-02-08 13:55:46,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:46,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:55:46,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-02-08 13:55:46,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:55:46,819 INFO L124 PetriNetUnfolderBase]: 4942/7050 cut-off events. [2025-02-08 13:55:46,819 INFO L125 PetriNetUnfolderBase]: For 3150/3150 co-relation queries the response was YES. [2025-02-08 13:55:46,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16821 conditions, 7050 events. 4942/7050 cut-off events. For 3150/3150 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 36693 event pairs, 1614 based on Foata normal form. 84/7128 useless extension candidates. Maximal degree in co-relation 16808. Up to 3226 conditions per place. [2025-02-08 13:55:46,837 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2025-02-08 13:55:46,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 355 flow [2025-02-08 13:55:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 13:55:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 13:55:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-02-08 13:55:46,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.526829268292683 [2025-02-08 13:55:46,840 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 108 transitions. [2025-02-08 13:55:46,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 355 flow [2025-02-08 13:55:46,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 331 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-08 13:55:46,850 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2025-02-08 13:55:46,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2025-02-08 13:55:46,852 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-02-08 13:55:46,852 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2025-02-08 13:55:46,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:55:46,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-08 13:55:46,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-08 13:55:46,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-08 13:55:46,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 13:55:46,858 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 13:55:46,863 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 13:55:46,864 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 13:55:46,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:55:46 BasicIcfg [2025-02-08 13:55:46,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 13:55:46,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 13:55:46,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 13:55:46,871 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 13:55:46,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:55:41" (3/4) ... [2025-02-08 13:55:46,873 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 13:55:46,875 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 13:55:46,876 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 13:55:46,876 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 13:55:46,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2025-02-08 13:55:46,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 13:55:46,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 13:55:46,881 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 13:55:46,952 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 13:55:46,952 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 13:55:46,952 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 13:55:46,954 INFO L158 Benchmark]: Toolchain (without parser) took 6943.54ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 134.0MB in the beginning and 430.8MB in the end (delta: -296.8MB). Peak memory consumption was 206.5MB. Max. memory is 16.1GB. [2025-02-08 13:55:46,954 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:55:46,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.68ms. Allocated memory is still 167.8MB. Free memory was 134.0MB in the beginning and 110.8MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 13:55:46,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.18ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:55:46,955 INFO L158 Benchmark]: Boogie Preprocessor took 70.26ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 105.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:55:46,956 INFO L158 Benchmark]: IcfgBuilder took 751.97ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 47.9MB in the end (delta: 57.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-08 13:55:46,956 INFO L158 Benchmark]: TraceAbstraction took 5386.76ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 47.5MB in the beginning and 435.2MB in the end (delta: -387.7MB). Peak memory consumption was 407.8MB. Max. memory is 16.1GB. [2025-02-08 13:55:46,956 INFO L158 Benchmark]: Witness Printer took 82.46ms. Allocated memory is still 671.1MB. Free memory was 435.2MB in the beginning and 430.8MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:55:46,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.68ms. Allocated memory is still 167.8MB. Free memory was 134.0MB in the beginning and 110.8MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.18ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.26ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 105.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 751.97ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 47.9MB in the end (delta: 57.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5386.76ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 47.5MB in the beginning and 435.2MB in the end (delta: -387.7MB). Peak memory consumption was 407.8MB. Max. memory is 16.1GB. * Witness Printer took 82.46ms. Allocated memory is still 671.1MB. Free memory was 435.2MB in the beginning and 430.8MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: 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 7 procedures, 74 locations, 15 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: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 13:55:46,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE