./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/safe002_tso.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 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:37:16,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:37:16,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:37:16,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:37:16,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:37:16,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:37:16,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:37:16,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:37:16,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:37:16,509 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:37:16,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:37:16,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:37:16,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:37:16,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:37:16,511 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:37:16,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:37:16,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:37:16,512 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:37:16,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:37:16,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:37:16,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:37:16,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:37:16,514 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:37:16,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:37:16,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:37:16,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:37:16,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:37:16,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:37:16,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:37:16,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:37:16,515 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 -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2025-02-06 18:37:16,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:37:16,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:37:16,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:37:16,827 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:37:16,827 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:37:16,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-06 18:37:18,092 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f28fed250/5bc3862589174502973f91e2ac7b28f7/FLAG8e1d8dcfe [2025-02-06 18:37:18,396 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:37:18,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-06 18:37:18,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f28fed250/5bc3862589174502973f91e2ac7b28f7/FLAG8e1d8dcfe [2025-02-06 18:37:18,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f28fed250/5bc3862589174502973f91e2ac7b28f7 [2025-02-06 18:37:18,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:37:18,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:37:18,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:37:18,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:37:18,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:37:18,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:37:18" (1/1) ... [2025-02-06 18:37:18,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6151157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:18, skipping insertion in model container [2025-02-06 18:37:18,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:37:18" (1/1) ... [2025-02-06 18:37:18,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:37:18,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:37:19,006 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:37:19,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:37:19,077 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:37:19,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19 WrapperNode [2025-02-06 18:37:19,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:37:19,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:37:19,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:37:19,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:37:19,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,119 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-06 18:37:19,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:37:19,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:37:19,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:37:19,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:37:19,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,139 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]. [2025-02-06 18:37:19,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:37:19,150 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:37:19,150 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:37:19,150 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:37:19,151 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (1/1) ... [2025-02-06 18:37:19,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:37:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:37:19,213 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) [2025-02-06 18:37:19,229 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 [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 18:37:19,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 18:37:19,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 18:37:19,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 18:37:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:37:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:37:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:37:19,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:37:19,250 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:37:19,362 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:37:19,363 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:37:19,513 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:37:19,513 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:37:19,631 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:37:19,631 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:37:19,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:37:19 BoogieIcfgContainer [2025-02-06 18:37:19,631 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:37:19,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:37:19,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:37:19,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:37:19,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:37:18" (1/3) ... [2025-02-06 18:37:19,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e511b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:37:19, skipping insertion in model container [2025-02-06 18:37:19,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:37:19" (2/3) ... [2025-02-06 18:37:19,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e511b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:37:19, skipping insertion in model container [2025-02-06 18:37:19,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:37:19" (3/3) ... [2025-02-06 18:37:19,646 INFO L128 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2025-02-06 18:37:19,657 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:37:19,658 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe002_tso.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-06 18:37:19,658 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:37:19,706 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:37:19,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2025-02-06 18:37:19,770 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-02-06 18:37:19,775 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:37:19,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-06 18:37:19,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2025-02-06 18:37:19,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2025-02-06 18:37:19,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:37:19,805 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;@5848a699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:37:19,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 18:37:19,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:37:19,814 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-06 18:37:19,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:37:19,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:37:19,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:37:19,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:37:19,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:37:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1063917810, now seen corresponding path program 1 times [2025-02-06 18:37:19,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:37:19,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34591894] [2025-02-06 18:37:19,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:37:19,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:37:19,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:37:19,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:37:19,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:37:19,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:37:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:37:20,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:37:20,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34591894] [2025-02-06 18:37:20,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34591894] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:37:20,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:37:20,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:37:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756279259] [2025-02-06 18:37:20,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:37:20,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:37:20,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:37:20,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:37:20,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:37:20,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-06 18:37:20,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 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) [2025-02-06 18:37:20,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:37:20,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-06 18:37:20,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:37:20,949 INFO L124 PetriNetUnfolderBase]: 6011/8643 cut-off events. [2025-02-06 18:37:20,950 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2025-02-06 18:37:20,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17382 conditions, 8643 events. 6011/8643 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 46624 event pairs, 2103 based on Foata normal form. 0/7438 useless extension candidates. Maximal degree in co-relation 17371. Up to 7145 conditions per place. [2025-02-06 18:37:21,019 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 51 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2025-02-06 18:37:21,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 58 transitions, 241 flow [2025-02-06 18:37:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:37:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:37:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2025-02-06 18:37:21,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6752136752136753 [2025-02-06 18:37:21,040 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 79 transitions. [2025-02-06 18:37:21,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 58 transitions, 241 flow [2025-02-06 18:37:21,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 236 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:37:21,051 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2025-02-06 18:37:21,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2025-02-06 18:37:21,056 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2025-02-06 18:37:21,058 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2025-02-06 18:37:21,058 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) [2025-02-06 18:37:21,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:37:21,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:37:21,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:37:21,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:37:21,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:37:21,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1564452532, now seen corresponding path program 1 times [2025-02-06 18:37:21,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:37:21,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155803008] [2025-02-06 18:37:21,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:37:21,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:37:21,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:37:21,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:37:21,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:37:21,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:37:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:37:21,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:37:21,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155803008] [2025-02-06 18:37:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155803008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:37:21,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:37:21,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:37:21,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624918946] [2025-02-06 18:37:21,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:37:21,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:37:21,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:37:21,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:37:21,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:37:21,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-06 18:37:21,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:37:21,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:37:21,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-06 18:37:21,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:37:21,874 INFO L124 PetriNetUnfolderBase]: 4754/6832 cut-off events. [2025-02-06 18:37:21,875 INFO L125 PetriNetUnfolderBase]: For 458/458 co-relation queries the response was YES. [2025-02-06 18:37:21,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15484 conditions, 6832 events. 4754/6832 cut-off events. For 458/458 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 35749 event pairs, 1616 based on Foata normal form. 0/6307 useless extension candidates. Maximal degree in co-relation 15473. Up to 5333 conditions per place. [2025-02-06 18:37:21,934 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 48 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2025-02-06 18:37:21,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 248 flow [2025-02-06 18:37:21,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:37:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:37:21,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2025-02-06 18:37:21,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2025-02-06 18:37:21,936 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 79 transitions. [2025-02-06 18:37:21,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 248 flow [2025-02-06 18:37:21,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:37:21,940 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2025-02-06 18:37:21,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2025-02-06 18:37:21,941 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-02-06 18:37:21,941 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2025-02-06 18:37:21,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:37:21,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:37:21,942 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:37:21,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:37:21,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:37:21,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:37:21,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1564452531, now seen corresponding path program 1 times [2025-02-06 18:37:21,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:37:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139321984] [2025-02-06 18:37:21,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:37:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:37:21,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:37:21,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:37:21,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:37:21,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:37:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:37:22,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:37:22,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139321984] [2025-02-06 18:37:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139321984] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:37:22,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:37:22,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:37:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462848476] [2025-02-06 18:37:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:37:22,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:37:22,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:37:22,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:37:22,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:37:22,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-06 18:37:22,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:37:22,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:37:22,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-06 18:37:22,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:37:22,590 INFO L124 PetriNetUnfolderBase]: 3851/5543 cut-off events. [2025-02-06 18:37:22,590 INFO L125 PetriNetUnfolderBase]: For 1056/1056 co-relation queries the response was YES. [2025-02-06 18:37:22,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12387 conditions, 5543 events. 3851/5543 cut-off events. For 1056/1056 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 28267 event pairs, 1069 based on Foata normal form. 0/5446 useless extension candidates. Maximal degree in co-relation 12375. Up to 2352 conditions per place. [2025-02-06 18:37:22,627 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 65 selfloop transitions, 7 changer transitions 3/78 dead transitions. [2025-02-06 18:37:22,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 352 flow [2025-02-06 18:37:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:37:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:37:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-02-06 18:37:22,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2025-02-06 18:37:22,630 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 102 transitions. [2025-02-06 18:37:22,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 352 flow [2025-02-06 18:37:22,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:37:22,635 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2025-02-06 18:37:22,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2025-02-06 18:37:22,637 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2025-02-06 18:37:22,637 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2025-02-06 18:37:22,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:37:22,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:37:22,637 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] [2025-02-06 18:37:22,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:37:22,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:37:22,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:37:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1936359242, now seen corresponding path program 1 times [2025-02-06 18:37:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:37:22,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466378560] [2025-02-06 18:37:22,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:37:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:37:22,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 18:37:22,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 18:37:22,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:37:22,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:37:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:37:22,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:37:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466378560] [2025-02-06 18:37:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466378560] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:37:22,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:37:22,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:37:22,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840021047] [2025-02-06 18:37:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:37:22,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:37:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:37:22,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:37:22,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:37:22,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-06 18:37:22,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-06 18:37:22,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:37:22,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-06 18:37:22,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:37:23,143 INFO L124 PetriNetUnfolderBase]: 3535/5087 cut-off events. [2025-02-06 18:37:23,144 INFO L125 PetriNetUnfolderBase]: For 2436/2436 co-relation queries the response was YES. [2025-02-06 18:37:23,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12350 conditions, 5087 events. 3535/5087 cut-off events. For 2436/2436 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 26086 event pairs, 999 based on Foata normal form. 84/5158 useless extension candidates. Maximal degree in co-relation 12337. Up to 2352 conditions per place. [2025-02-06 18:37:23,161 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-02-06 18:37:23,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 72 transitions, 331 flow [2025-02-06 18:37:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:37:23,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:37:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2025-02-06 18:37:23,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5230769230769231 [2025-02-06 18:37:23,164 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 102 transitions. [2025-02-06 18:37:23,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 72 transitions, 331 flow [2025-02-06 18:37:23,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 72 transitions, 307 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-06 18:37:23,174 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2025-02-06 18:37:23,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2025-02-06 18:37:23,175 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-02-06 18:37:23,176 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2025-02-06 18:37:23,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-06 18:37:23,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-06 18:37:23,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-06 18:37:23,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-06 18:37:23,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-06 18:37:23,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-06 18:37:23,181 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-06 18:37:23,181 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-06 18:37:23,181 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-06 18:37:23,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:37:23,181 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 18:37:23,187 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:37:23,187 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:37:23,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:37:23 BasicIcfg [2025-02-06 18:37:23,193 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:37:23,194 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:37:23,194 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:37:23,194 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:37:23,195 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:37:19" (3/4) ... [2025-02-06 18:37:23,197 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:37:23,199 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 18:37:23,200 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 18:37:23,200 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 18:37:23,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-06 18:37:23,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-06 18:37:23,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 18:37:23,204 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 18:37:23,275 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:37:23,276 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:37:23,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:37:23,277 INFO L158 Benchmark]: Toolchain (without parser) took 4600.21ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 111.0MB in the beginning and 99.2MB in the end (delta: 11.8MB). Peak memory consumption was 154.1MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,278 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:37:23,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.76ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 90.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.32ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,282 INFO L158 Benchmark]: Boogie Preprocessor took 30.18ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:37:23,282 INFO L158 Benchmark]: IcfgBuilder took 481.32ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 65.1MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,283 INFO L158 Benchmark]: TraceAbstraction took 3555.95ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 64.6MB in the beginning and 105.5MB in the end (delta: -40.8MB). Peak memory consumption was 170.8MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,283 INFO L158 Benchmark]: Witness Printer took 82.36ms. Allocated memory is still 285.2MB. Free memory was 105.5MB in the beginning and 99.2MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:37:23,284 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.76ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 90.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.32ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.18ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 87.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 481.32ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 65.1MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3555.95ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 64.6MB in the beginning and 105.5MB in the end (delta: -40.8MB). Peak memory consumption was 170.8MB. Max. memory is 16.1GB. * Witness Printer took 82.36ms. Allocated memory is still 285.2MB. Free memory was 105.5MB in the beginning and 99.2MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: 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, 70 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 324 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=127occurred 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, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 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! [2025-02-06 18:37:23,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE