./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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_04-priv_multi_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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:20:25,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:20:25,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:20:25,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:20:25,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:20:25,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:20:25,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:20:25,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:20:25,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:20:25,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:20:25,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:20:25,258 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:20:25,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:20:25,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:20:25,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:20:25,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:20:25,262 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 -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2025-03-04 15:20:25,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:20:25,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:20:25,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:20:25,474 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:20:25,474 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:20:25,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-03-04 15:20:26,557 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fded9ebc6/f22df798fbf64dafbf979d90228907aa/FLAGde20d8540 [2025-03-04 15:20:26,853 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:20:26,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-03-04 15:20:26,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fded9ebc6/f22df798fbf64dafbf979d90228907aa/FLAGde20d8540 [2025-03-04 15:20:26,890 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fded9ebc6/f22df798fbf64dafbf979d90228907aa [2025-03-04 15:20:26,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:20:26,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:20:26,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:20:26,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:20:26,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:20:26,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:26,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd2ec83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26, skipping insertion in model container [2025-03-04 15:20:26,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:26,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:20:27,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:20:27,277 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:20:27,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:20:27,358 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:20:27,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27 WrapperNode [2025-03-04 15:20:27,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:20:27,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:20:27,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:20:27,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:20:27,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,390 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 100 [2025-03-04 15:20:27,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:20:27,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:20:27,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:20:27,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:20:27,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,412 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-03-04 15:20:27,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:20:27,426 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:20:27,426 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:20:27,426 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:20:27,433 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (1/1) ... [2025-03-04 15:20:27,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:20:27,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:27,461 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) [2025-03-04 15:20:27,464 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 [2025-03-04 15:20:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2025-03-04 15:20:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2025-03-04 15:20:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure process [2025-03-04 15:20:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2025-03-04 15:20:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:20:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:20:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:20:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:20:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:20:27,483 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:20:27,660 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:20:27,662 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:20:27,885 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:20:27,886 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:20:28,002 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:20:28,003 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:20:28,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:20:28 BoogieIcfgContainer [2025-03-04 15:20:28,003 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:20:28,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:20:28,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:20:28,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:20:28,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:20:26" (1/3) ... [2025-03-04 15:20:28,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d271e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:20:28, skipping insertion in model container [2025-03-04 15:20:28,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:27" (2/3) ... [2025-03-04 15:20:28,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d271e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:20:28, skipping insertion in model container [2025-03-04 15:20:28,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:20:28" (3/3) ... [2025-03-04 15:20:28,011 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2025-03-04 15:20:28,022 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:20:28,024 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 66 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-03-04 15:20:28,024 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:20:28,076 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:20:28,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 154 flow [2025-03-04 15:20:28,132 INFO L124 PetriNetUnfolderBase]: 6/68 cut-off events. [2025-03-04 15:20:28,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:20:28,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 6/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2025-03-04 15:20:28,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 154 flow [2025-03-04 15:20:28,142 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 145 flow [2025-03-04 15:20:28,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:20:28,162 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;@6b64d34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:20:28,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-04 15:20:28,173 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:20:28,174 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2025-03-04 15:20:28,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:20:28,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:28,175 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:28,175 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-04 15:20:28,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:28,179 INFO L85 PathProgramCache]: Analyzing trace with hash -259542112, now seen corresponding path program 1 times [2025-03-04 15:20:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:28,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858139246] [2025-03-04 15:20:28,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:28,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:28,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:20:28,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:20:28,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:28,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:28,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:28,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858139246] [2025-03-04 15:20:28,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858139246] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:28,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:28,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:20:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555752871] [2025-03-04 15:20:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:28,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:28,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:28,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:28,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-04 15:20:28,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-04 15:20:28,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:28,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-04 15:20:28,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:31,656 INFO L124 PetriNetUnfolderBase]: 33535/54217 cut-off events. [2025-03-04 15:20:31,656 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2025-03-04 15:20:31,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99122 conditions, 54217 events. 33535/54217 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 430050 event pairs, 11329 based on Foata normal form. 392/50621 useless extension candidates. Maximal degree in co-relation 99111. Up to 20396 conditions per place. [2025-03-04 15:20:31,913 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 120 selfloop transitions, 9 changer transitions 0/153 dead transitions. [2025-03-04 15:20:31,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 153 transitions, 582 flow [2025-03-04 15:20:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:20:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:20:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2025-03-04 15:20:31,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7661971830985915 [2025-03-04 15:20:31,927 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 145 flow. Second operand 5 states and 272 transitions. [2025-03-04 15:20:31,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 153 transitions, 582 flow [2025-03-04 15:20:31,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 153 transitions, 576 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:20:31,937 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 206 flow [2025-03-04 15:20:31,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2025-03-04 15:20:31,942 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2025-03-04 15:20:31,942 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 206 flow [2025-03-04 15:20:31,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-04 15:20:31,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:31,942 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:31,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:20:31,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-04 15:20:31,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash 396188014, now seen corresponding path program 1 times [2025-03-04 15:20:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668018256] [2025-03-04 15:20:31,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:31,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:20:31,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:20:31,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:31,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:32,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:32,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668018256] [2025-03-04 15:20:32,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668018256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:32,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:32,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:20:32,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194518596] [2025-03-04 15:20:32,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:32,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:32,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:32,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:32,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:32,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 71 [2025-03-04 15:20:32,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-04 15:20:32,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:32,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 71 [2025-03-04 15:20:32,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:36,486 INFO L124 PetriNetUnfolderBase]: 54937/91090 cut-off events. [2025-03-04 15:20:36,486 INFO L125 PetriNetUnfolderBase]: For 20058/21083 co-relation queries the response was YES. [2025-03-04 15:20:36,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181428 conditions, 91090 events. 54937/91090 cut-off events. For 20058/21083 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 805220 event pairs, 30096 based on Foata normal form. 2636/88532 useless extension candidates. Maximal degree in co-relation 181414. Up to 48381 conditions per place. [2025-03-04 15:20:36,965 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 119 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2025-03-04 15:20:36,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 149 transitions, 664 flow [2025-03-04 15:20:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:20:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:20:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2025-03-04 15:20:36,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.778169014084507 [2025-03-04 15:20:36,970 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 206 flow. Second operand 4 states and 221 transitions. [2025-03-04 15:20:36,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 149 transitions, 664 flow [2025-03-04 15:20:37,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 149 transitions, 664 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:20:37,060 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 230 flow [2025-03-04 15:20:37,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2025-03-04 15:20:37,061 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 8 predicate places. [2025-03-04 15:20:37,061 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 230 flow [2025-03-04 15:20:37,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-04 15:20:37,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:37,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:37,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:20:37,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-04 15:20:37,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash 544129492, now seen corresponding path program 1 times [2025-03-04 15:20:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:37,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683794119] [2025-03-04 15:20:37,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:37,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:37,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:20:37,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:20:37,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:37,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:37,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:37,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:37,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683794119] [2025-03-04 15:20:37,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683794119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:37,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:20:37,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811747610] [2025-03-04 15:20:37,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:37,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:37,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:37,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:37,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:37,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-04 15:20:37,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-04 15:20:37,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:37,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-04 15:20:37,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:43,606 INFO L124 PetriNetUnfolderBase]: 74746/119151 cut-off events. [2025-03-04 15:20:43,607 INFO L125 PetriNetUnfolderBase]: For 49426/52028 co-relation queries the response was YES. [2025-03-04 15:20:43,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261754 conditions, 119151 events. 74746/119151 cut-off events. For 49426/52028 co-relation queries the response was YES. Maximal size of possible extension queue 2606. Compared 1035280 event pairs, 19623 based on Foata normal form. 1848/115976 useless extension candidates. Maximal degree in co-relation 261737. Up to 46241 conditions per place. [2025-03-04 15:20:44,321 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 130 selfloop transitions, 15 changer transitions 0/169 dead transitions. [2025-03-04 15:20:44,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 169 transitions, 796 flow [2025-03-04 15:20:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:20:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:20:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 265 transitions. [2025-03-04 15:20:44,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7464788732394366 [2025-03-04 15:20:44,322 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 230 flow. Second operand 5 states and 265 transitions. [2025-03-04 15:20:44,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 169 transitions, 796 flow [2025-03-04 15:20:44,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 169 transitions, 788 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:20:44,486 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 354 flow [2025-03-04 15:20:44,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2025-03-04 15:20:44,487 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 15 predicate places. [2025-03-04 15:20:44,487 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 354 flow [2025-03-04 15:20:44,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-04 15:20:44,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:44,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:44,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:20:44,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-04 15:20:44,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash 955553058, now seen corresponding path program 1 times [2025-03-04 15:20:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:44,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280484652] [2025-03-04 15:20:44,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:44,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:44,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:20:44,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:20:44,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:44,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:44,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:44,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280484652] [2025-03-04 15:20:44,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280484652] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:44,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:44,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:20:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141284013] [2025-03-04 15:20:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:44,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:20:44,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:44,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:20:44,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:20:44,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-04 15:20:44,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 354 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) [2025-03-04 15:20:44,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:44,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-04 15:20:44,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:52,396 INFO L124 PetriNetUnfolderBase]: 85703/131330 cut-off events. [2025-03-04 15:20:52,396 INFO L125 PetriNetUnfolderBase]: For 113724/117062 co-relation queries the response was YES. [2025-03-04 15:20:52,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313632 conditions, 131330 events. 85703/131330 cut-off events. For 113724/117062 co-relation queries the response was YES. Maximal size of possible extension queue 2687. Compared 1082028 event pairs, 16793 based on Foata normal form. 1178/127690 useless extension candidates. Maximal degree in co-relation 313610. Up to 46913 conditions per place. [2025-03-04 15:20:53,256 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 239 selfloop transitions, 21 changer transitions 0/282 dead transitions. [2025-03-04 15:20:53,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 282 transitions, 1410 flow [2025-03-04 15:20:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:20:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:20:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 463 transitions. [2025-03-04 15:20:53,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7245696400625978 [2025-03-04 15:20:53,258 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 354 flow. Second operand 9 states and 463 transitions. [2025-03-04 15:20:53,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 282 transitions, 1410 flow [2025-03-04 15:20:53,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 282 transitions, 1402 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-03-04 15:20:53,869 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 470 flow [2025-03-04 15:20:53,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2025-03-04 15:20:53,869 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2025-03-04 15:20:53,869 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 470 flow [2025-03-04 15:20:53,871 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) [2025-03-04 15:20:53,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:53,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:53,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:20:53,871 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-04 15:20:53,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash -442625896, now seen corresponding path program 1 times [2025-03-04 15:20:53,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:53,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531611163] [2025-03-04 15:20:53,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:53,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:20:53,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:20:53,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:53,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:53,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:53,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531611163] [2025-03-04 15:20:53,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531611163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:53,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:53,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:20:53,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315473072] [2025-03-04 15:20:53,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:53,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:20:53,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:53,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:20:53,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:20:53,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-04 15:20:53,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 92 transitions, 470 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) [2025-03-04 15:20:53,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:53,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-04 15:20:53,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand