./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.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/goblint-regression/06-symbeq_11a-equ_nr.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 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:04:05,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:04:05,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:04:05,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:04:05,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:04:05,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:04:05,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:04:05,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:04:05,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:04:05,682 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:04:05,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:04:05,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:04:05,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:04:05,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:04:05,683 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:04:05,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:05,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:04:05,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:04:05,684 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 -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 [2025-02-08 14:04:05,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:04:05,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:04:05,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:04:05,912 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:04:05,913 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:04:05,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2025-02-08 14:04:07,178 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6c9046780/12fdda258a1e450db9ac6d089851c868/FLAG1862428fe [2025-02-08 14:04:07,554 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:04:07,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2025-02-08 14:04:07,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6c9046780/12fdda258a1e450db9ac6d089851c868/FLAG1862428fe [2025-02-08 14:04:07,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6c9046780/12fdda258a1e450db9ac6d089851c868 [2025-02-08 14:04:07,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:04:07,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:04:07,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:07,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:04:07,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:04:07,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:07" (1/1) ... [2025-02-08 14:04:07,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdb26f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:07, skipping insertion in model container [2025-02-08 14:04:07,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:07" (1/1) ... [2025-02-08 14:04:07,796 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:04:08,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:08,030 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:04:08,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:08,107 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:04:08,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08 WrapperNode [2025-02-08 14:04:08,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:08,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:08,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:04:08,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:04:08,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,145 INFO L138 Inliner]: procedures = 265, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2025-02-08 14:04:08,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:08,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:04:08,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:04:08,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:04:08,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,164 INFO L175 MemorySlicer]: Split 18 memory accesses to 1 slices as follows [18]. 100 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [16]. The 2 writes are split as follows [2]. [2025-02-08 14:04:08,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,168 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:04:08,175 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:04:08,175 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:04:08,175 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:04:08,181 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (1/1) ... [2025-02-08 14:04:08,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:08,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:08,211 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 14:04:08,213 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 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:04:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:04:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:04:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:04:08,231 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 14:04:08,327 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:04:08,330 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:04:08,467 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:04:08,467 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:04:08,548 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:04:08,549 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:04:08,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:08 BoogieIcfgContainer [2025-02-08 14:04:08,549 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:04:08,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:04:08,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:04:08,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:04:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:04:07" (1/3) ... [2025-02-08 14:04:08,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a9298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:08, skipping insertion in model container [2025-02-08 14:04:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:08" (2/3) ... [2025-02-08 14:04:08,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a9298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:08, skipping insertion in model container [2025-02-08 14:04:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:08" (3/3) ... [2025-02-08 14:04:08,559 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2025-02-08 14:04:08,576 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:04:08,577 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_11a-equ_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 14:04:08,577 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:04:08,603 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:04:08,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 52 flow [2025-02-08 14:04:08,656 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2025-02-08 14:04:08,658 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:08,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 23 events. 1/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2025-02-08 14:04:08,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 52 flow [2025-02-08 14:04:08,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 10 places, 9 transitions, 18 flow [2025-02-08 14:04:08,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:04:08,673 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;@1e0efbca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:04:08,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 14:04:08,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:04:08,676 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-08 14:04:08,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:08,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:08,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:04:08,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-02-08 14:04:08,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash 181077, now seen corresponding path program 1 times [2025-02-08 14:04:08,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:08,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304744087] [2025-02-08 14:04:08,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:08,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:08,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:04:08,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:04:08,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:08,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:08,849 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 14:04:08,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:08,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304744087] [2025-02-08 14:04:08,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304744087] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:08,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:08,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:08,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106235700] [2025-02-08 14:04:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:08,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:04:08,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:08,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:04:08,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:04:08,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2025-02-08 14:04:08,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 9 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 14:04:08,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:08,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2025-02-08 14:04:08,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:08,900 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-02-08 14:04:08,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:08,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 1/7 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2025-02-08 14:04:08,901 INFO L140 encePairwiseOnDemand]: 22/24 looper letters, 3 selfloop transitions, 1 changer transitions 0/8 dead transitions. [2025-02-08 14:04:08,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 8 transitions, 24 flow [2025-02-08 14:04:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:04:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:04:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2025-02-08 14:04:08,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3194444444444444 [2025-02-08 14:04:08,911 INFO L175 Difference]: Start difference. First operand has 10 places, 9 transitions, 18 flow. Second operand 3 states and 23 transitions. [2025-02-08 14:04:08,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 8 transitions, 24 flow [2025-02-08 14:04:08,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 24 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:08,915 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 18 flow [2025-02-08 14:04:08,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2025-02-08 14:04:08,919 INFO L279 CegarLoopForPetriNet]: 10 programPoint places, 1 predicate places. [2025-02-08 14:04:08,920 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 18 flow [2025-02-08 14:04:08,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 14:04:08,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:08,920 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:04:08,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:04:08,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-02-08 14:04:08,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:08,922 INFO L85 PathProgramCache]: Analyzing trace with hash 181095, now seen corresponding path program 1 times [2025-02-08 14:04:08,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:08,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587784328] [2025-02-08 14:04:08,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:08,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:08,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:04:08,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:04:08,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:08,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:08,972 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 14:04:08,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:08,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587784328] [2025-02-08 14:04:08,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587784328] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:08,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:08,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457584854] [2025-02-08 14:04:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:08,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:08,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:08,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:08,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2025-02-08 14:04:08,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 18 flow. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:04:08,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:08,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2025-02-08 14:04:08,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:08,997 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-02-08 14:04:08,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:08,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 14:04:08,998 INFO L140 encePairwiseOnDemand]: 21/24 looper letters, 2 selfloop transitions, 2 changer transitions 0/7 dead transitions. [2025-02-08 14:04:08,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 7 transitions, 24 flow [2025-02-08 14:04:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2025-02-08 14:04:08,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3020833333333333 [2025-02-08 14:04:08,998 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 18 flow. Second operand 4 states and 29 transitions. [2025-02-08 14:04:08,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 7 transitions, 24 flow [2025-02-08 14:04:08,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 23 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:08,999 INFO L231 Difference]: Finished difference. Result has 12 places, 7 transitions, 19 flow [2025-02-08 14:04:08,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=19, PETRI_PLACES=12, PETRI_TRANSITIONS=7} [2025-02-08 14:04:09,000 INFO L279 CegarLoopForPetriNet]: 10 programPoint places, 2 predicate places. [2025-02-08 14:04:09,000 INFO L471 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 19 flow [2025-02-08 14:04:09,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:04:09,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:09,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 14:04:09,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:04:09,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-02-08 14:04:09,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash 5614063, now seen corresponding path program 1 times [2025-02-08 14:04:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012839112] [2025-02-08 14:04:09,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:09,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:04:09,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:04:09,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:09,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:04:09,013 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:04:09,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:04:09,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:04:09,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:09,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:04:09,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:04:09,027 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:04:09,027 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2025-02-08 14:04:09,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2025-02-08 14:04:09,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2025-02-08 14:04:09,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2025-02-08 14:04:09,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 14:04:09,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:04:09,029 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 14:04:09,039 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:04:09,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:04:09,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:04:09 BasicIcfg [2025-02-08 14:04:09,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:04:09,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:04:09,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:04:09,043 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:04:09,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:08" (3/4) ... [2025-02-08 14:04:09,044 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-08 14:04:09,069 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-02-08 14:04:09,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:04:09,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:04:09,096 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:04:09,096 INFO L158 Benchmark]: Toolchain (without parser) took 1335.00ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 66.7MB in the end (delta: 34.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2025-02-08 14:04:09,097 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:09,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.51ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 73.9MB in the end (delta: 27.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:04:09,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.17ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 71.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:09,098 INFO L158 Benchmark]: Boogie Preprocessor took 28.90ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 70.3MB in the end (delta: 902.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:09,098 INFO L158 Benchmark]: IcfgBuilder took 374.06ms. Allocated memory is still 142.6MB. Free memory was 70.3MB in the beginning and 41.3MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:04:09,098 INFO L158 Benchmark]: TraceAbstraction took 491.66ms. Allocated memory is still 142.6MB. Free memory was 41.3MB in the beginning and 72.2MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:04:09,100 INFO L158 Benchmark]: Witness Printer took 52.87ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 66.7MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:04:09,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.51ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 73.9MB in the end (delta: 27.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.17ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 71.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.90ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 70.3MB in the end (delta: 902.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.06ms. Allocated memory is still 142.6MB. Free memory was 70.3MB in the beginning and 41.3MB in the end (delta: 29.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 491.66ms. Allocated memory is still 142.6MB. Free memory was 41.3MB in the beginning and 72.2MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.87ms. Allocated memory is still 142.6MB. Free memory was 72.2MB in the beginning and 66.7MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1010]: integer overflow possible integer overflow possible We found a FailurePath: [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] int x = __VERIFIER_nondet_int(); [L1004] pthread_t id; [L1005] struct s *s; [L1006] int *d; [L1007] pthread_mutex_t *m; VAL [A={1:0}, B={2:0}, x=2147483647] [L1008] COND TRUE \read(x) [L1009] s = &A [L1010] x++ VAL [A={1:0}, B={2:0}, s={1:0}, x=2147483647] - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 31 locations, 5 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: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2025-02-08 14:04:09,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)