./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:36:51,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:36:51,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:36:51,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:36:51,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:36:52,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:36:52,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:36:52,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:36:52,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:36:52,017 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:36:52,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:36:52,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:36:52,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:36:52,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:36:52,018 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:36:52,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:36:52,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:36:52,020 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:36:52,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:36:52,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:36:52,022 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2025-03-17 19:36:52,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:36:52,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:36:52,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:36:52,374 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:36:52,374 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:36:52,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2025-03-17 19:36:53,677 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/753015da6/0c880eba3ee24c5a8920a7970901f947/FLAGec8f6af15 [2025-03-17 19:36:53,998 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:36:53,998 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2025-03-17 19:36:54,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/753015da6/0c880eba3ee24c5a8920a7970901f947/FLAGec8f6af15 [2025-03-17 19:36:54,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/753015da6/0c880eba3ee24c5a8920a7970901f947 [2025-03-17 19:36:54,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:36:54,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:36:54,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:36:54,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:36:54,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:36:54,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49efd45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54, skipping insertion in model container [2025-03-17 19:36:54,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:36:54,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:36:54,352 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:36:54,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:36:54,430 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:36:54,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54 WrapperNode [2025-03-17 19:36:54,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:36:54,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:36:54,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:36:54,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:36:54,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,470 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 109 [2025-03-17 19:36:54,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:36:54,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:36:54,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:36:54,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:36:54,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,494 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2025-03-17 19:36:54,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,499 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:36:54,505 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:36:54,506 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:36:54,506 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:36:54,507 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (1/1) ... [2025-03-17 19:36:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:36:54,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:36:54,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:36:54,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:36:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 19:36:54,575 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:36:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:36:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:36:54,577 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:36:54,679 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:36:54,680 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:36:55,016 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:36:55,016 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:36:55,179 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:36:55,179 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:36:55,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:55 BoogieIcfgContainer [2025-03-17 19:36:55,179 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:36:55,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:36:55,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:36:55,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:36:55,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:36:54" (1/3) ... [2025-03-17 19:36:55,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db29799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:36:55, skipping insertion in model container [2025-03-17 19:36:55,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:36:54" (2/3) ... [2025-03-17 19:36:55,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db29799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:36:55, skipping insertion in model container [2025-03-17 19:36:55,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:55" (3/3) ... [2025-03-17 19:36:55,194 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2025-03-17 19:36:55,209 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:36:55,210 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_24-multiple-protecting_true.i that has 2 procedures, 72 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-17 19:36:55,211 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:36:55,299 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 19:36:55,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 149 flow [2025-03-17 19:36:55,385 INFO L124 PetriNetUnfolderBase]: 0/70 cut-off events. [2025-03-17 19:36:55,386 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:36:55,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-17 19:36:55,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 149 flow [2025-03-17 19:36:55,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2025-03-17 19:36:55,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:36:55,425 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;@2b7411e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:36:55,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-03-17 19:36:55,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:36:55,437 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2025-03-17 19:36:55,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:36:55,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:55,438 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:55,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:55,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:55,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2061206238, now seen corresponding path program 1 times [2025-03-17 19:36:55,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:55,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902527642] [2025-03-17 19:36:55,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:55,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:55,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:36:55,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:36:55,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:55,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:55,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:55,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902527642] [2025-03-17 19:36:55,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902527642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:55,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:55,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:36:55,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724134418] [2025-03-17 19:36:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:55,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:55,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:55,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:55,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:55,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-17 19:36:55,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2025-03-17 19:36:55,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:55,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-17 19:36:55,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:56,183 INFO L124 PetriNetUnfolderBase]: 457/1372 cut-off events. [2025-03-17 19:36:56,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:36:56,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 1372 events. 457/1372 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8935 event pairs, 34 based on Foata normal form. 18/1334 useless extension candidates. Maximal degree in co-relation 2346. Up to 481 conditions per place. [2025-03-17 19:36:56,193 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 76 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2025-03-17 19:36:56,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 385 flow [2025-03-17 19:36:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2025-03-17 19:36:56,205 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6795774647887324 [2025-03-17 19:36:56,207 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 129 flow. Second operand 4 states and 193 transitions. [2025-03-17 19:36:56,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 385 flow [2025-03-17 19:36:56,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:36:56,216 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 166 flow [2025-03-17 19:36:56,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2025-03-17 19:36:56,225 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2025-03-17 19:36:56,226 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 166 flow [2025-03-17 19:36:56,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2025-03-17 19:36:56,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:56,227 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:56,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:36:56,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:56,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:56,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1943254501, now seen corresponding path program 1 times [2025-03-17 19:36:56,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:56,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649447236] [2025-03-17 19:36:56,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:56,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:56,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:36:56,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:36:56,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:56,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:56,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:56,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649447236] [2025-03-17 19:36:56,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649447236] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:56,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:56,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:56,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686816241] [2025-03-17 19:36:56,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:56,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:56,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:56,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:56,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-17 19:36:56,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-17 19:36:56,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:56,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-17 19:36:56,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:56,894 INFO L124 PetriNetUnfolderBase]: 407/1220 cut-off events. [2025-03-17 19:36:56,894 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2025-03-17 19:36:56,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 1220 events. 407/1220 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7705 event pairs, 34 based on Foata normal form. 33/1215 useless extension candidates. Maximal degree in co-relation 2270. Up to 375 conditions per place. [2025-03-17 19:36:56,906 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 100 selfloop transitions, 8 changer transitions 0/131 dead transitions. [2025-03-17 19:36:56,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 131 transitions, 516 flow [2025-03-17 19:36:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2025-03-17 19:36:56,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6220657276995305 [2025-03-17 19:36:56,910 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 166 flow. Second operand 6 states and 265 transitions. [2025-03-17 19:36:56,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 131 transitions, 516 flow [2025-03-17 19:36:56,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 131 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 19:36:56,915 INFO L231 Difference]: Finished difference. Result has 71 places, 63 transitions, 165 flow [2025-03-17 19:36:56,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2025-03-17 19:36:56,915 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2025-03-17 19:36:56,916 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 165 flow [2025-03-17 19:36:56,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-17 19:36:56,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:56,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:56,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:36:56,916 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:56,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash 111347815, now seen corresponding path program 1 times [2025-03-17 19:36:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:56,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105729899] [2025-03-17 19:36:56,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:56,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:56,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:36:56,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:36:56,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:56,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:57,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105729899] [2025-03-17 19:36:57,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105729899] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:57,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:57,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:57,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497643183] [2025-03-17 19:36:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:57,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:57,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:57,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:57,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:57,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-17 19:36:57,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-17 19:36:57,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:57,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-17 19:36:57,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:57,353 INFO L124 PetriNetUnfolderBase]: 393/1188 cut-off events. [2025-03-17 19:36:57,353 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2025-03-17 19:36:57,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 1188 events. 393/1188 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7436 event pairs, 34 based on Foata normal form. 18/1168 useless extension candidates. Maximal degree in co-relation 2242. Up to 416 conditions per place. [2025-03-17 19:36:57,360 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 85 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2025-03-17 19:36:57,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 463 flow [2025-03-17 19:36:57,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2025-03-17 19:36:57,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5727699530516432 [2025-03-17 19:36:57,362 INFO L175 Difference]: Start difference. First operand has 71 places, 63 transitions, 165 flow. Second operand 6 states and 244 transitions. [2025-03-17 19:36:57,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 463 flow [2025-03-17 19:36:57,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 116 transitions, 442 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-17 19:36:57,365 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 158 flow [2025-03-17 19:36:57,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2025-03-17 19:36:57,366 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2025-03-17 19:36:57,366 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 158 flow [2025-03-17 19:36:57,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-17 19:36:57,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:57,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:57,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:36:57,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:57,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:57,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1604833174, now seen corresponding path program 1 times [2025-03-17 19:36:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:57,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7802703] [2025-03-17 19:36:57,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:57,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 19:36:57,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 19:36:57,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:57,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:57,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:57,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7802703] [2025-03-17 19:36:57,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7802703] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:57,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:57,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:36:57,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608178899] [2025-03-17 19:36:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:57,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:57,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:57,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:57,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:57,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-17 19:36:57,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2025-03-17 19:36:57,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:57,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-17 19:36:57,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:57,690 INFO L124 PetriNetUnfolderBase]: 422/1287 cut-off events. [2025-03-17 19:36:57,691 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2025-03-17 19:36:57,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 1287 events. 422/1287 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8120 event pairs, 233 based on Foata normal form. 32/1278 useless extension candidates. Maximal degree in co-relation 2408. Up to 629 conditions per place. [2025-03-17 19:36:57,697 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 76 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2025-03-17 19:36:57,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 428 flow [2025-03-17 19:36:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2025-03-17 19:36:57,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6443661971830986 [2025-03-17 19:36:57,699 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 158 flow. Second operand 4 states and 183 transitions. [2025-03-17 19:36:57,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 428 flow [2025-03-17 19:36:57,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 101 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:36:57,704 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 159 flow [2025-03-17 19:36:57,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2025-03-17 19:36:57,705 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2025-03-17 19:36:57,705 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 159 flow [2025-03-17 19:36:57,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2025-03-17 19:36:57,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:57,705 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:57,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:36:57,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:57,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash 473561773, now seen corresponding path program 1 times [2025-03-17 19:36:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:57,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374162339] [2025-03-17 19:36:57,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:57,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:57,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 19:36:57,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 19:36:57,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:57,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:57,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374162339] [2025-03-17 19:36:57,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374162339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:57,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:57,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:57,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834279242] [2025-03-17 19:36:57,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:57,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:57,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:57,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:57,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-17 19:36:57,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2025-03-17 19:36:57,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:57,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-17 19:36:57,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:58,258 INFO L124 PetriNetUnfolderBase]: 413/1178 cut-off events. [2025-03-17 19:36:58,258 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2025-03-17 19:36:58,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2302 conditions, 1178 events. 413/1178 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7084 event pairs, 233 based on Foata normal form. 42/1211 useless extension candidates. Maximal degree in co-relation 2289. Up to 548 conditions per place. [2025-03-17 19:36:58,268 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 91 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2025-03-17 19:36:58,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 493 flow [2025-03-17 19:36:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:58,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2025-03-17 19:36:58,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5610328638497653 [2025-03-17 19:36:58,271 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 159 flow. Second operand 6 states and 239 transitions. [2025-03-17 19:36:58,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 493 flow [2025-03-17 19:36:58,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 114 transitions, 487 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:36:58,278 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 154 flow [2025-03-17 19:36:58,278 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2025-03-17 19:36:58,279 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2025-03-17 19:36:58,280 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 154 flow [2025-03-17 19:36:58,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2025-03-17 19:36:58,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:58,283 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:58,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:36:58,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:36:58,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1795513523, now seen corresponding path program 1 times [2025-03-17 19:36:58,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305941818] [2025-03-17 19:36:58,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:58,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:58,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 19:36:58,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 19:36:58,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:58,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305941818] [2025-03-17 19:36:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305941818] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:58,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:58,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540131692] [2025-03-17 19:36:58,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:58,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:58,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:58,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:58,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-17 19:36:58,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2025-03-17 19:36:58,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:58,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-17 19:36:58,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:58,722 INFO L124 PetriNetUnfolderBase]: 385/1118 cut-off events. [2025-03-17 19:36:58,723 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2025-03-17 19:36:58,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 1118 events. 385/1118 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6699 event pairs, 233 based on Foata normal form. 32/1141 useless extension candidates. Maximal degree in co-relation 2196. Up to 548 conditions per place. [2025-03-17 19:36:58,727 INFO L140 encePairwiseOnDemand]: 66/71 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2025-03-17 19:36:58,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 113 transitions, 491 flow [2025-03-17 19:36:58,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2025-03-17 19:36:58,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5539906103286385 [2025-03-17 19:36:58,729 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 154 flow. Second operand 6 states and 236 transitions. [2025-03-17 19:36:58,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 113 transitions, 491 flow [2025-03-17 19:36:58,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 113 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:36:58,732 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2025-03-17 19:36:58,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2025-03-17 19:36:58,733 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2025-03-17 19:36:58,733 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2025-03-17 19:36:58,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2025-03-17 19:36:58,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-03-17 19:36:58,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2025-03-17 19:36:58,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2025-03-17 19:36:58,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2025-03-17 19:36:58,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:36:58,739 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 19:36:58,744 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:36:58,744 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:36:58,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:36:58 BasicIcfg [2025-03-17 19:36:58,749 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:36:58,750 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:36:58,750 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:36:58,750 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:36:58,751 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:36:55" (3/4) ... [2025-03-17 19:36:58,752 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:36:58,755 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-17 19:36:58,758 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-17 19:36:58,759 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-17 19:36:58,759 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 19:36:58,759 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 19:36:58,825 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:36:58,825 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:36:58,825 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:36:58,826 INFO L158 Benchmark]: Toolchain (without parser) took 4779.71ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 113.1MB in the beginning and 274.7MB in the end (delta: -161.6MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,826 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:58,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.24ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 92.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.87ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,827 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:58,827 INFO L158 Benchmark]: IcfgBuilder took 674.03ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 48.9MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,827 INFO L158 Benchmark]: TraceAbstraction took 3567.79ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 47.9MB in the beginning and 279.4MB in the end (delta: -231.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,828 INFO L158 Benchmark]: Witness Printer took 75.59ms. Allocated memory is still 427.8MB. Free memory was 279.4MB in the beginning and 274.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:36:58,829 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 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.24ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 92.8MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.87ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 674.03ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 48.9MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3567.79ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 47.9MB in the beginning and 279.4MB in the end (delta: -231.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 75.59ms. Allocated memory is still 427.8MB. Free memory was 279.4MB in the beginning and 274.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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 3 procedures, 115 locations, 114 edges, 17 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: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 461 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1443 IncrementalHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 25 mSDtfsCounter, 1443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=1, InterpolantAutomatonStates: 32, 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, 0.7s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:36:58,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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