./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:33:30,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:33:30,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:33:30,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:33:30,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:33:30,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:33:30,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:33:30,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:33:30,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:33:30,936 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:33:30,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:33:30,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:33:30,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:33:30,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:33:30,937 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:33:30,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:33:30,938 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:33:30,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:30,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:33:30,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:33:30,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:33:30,940 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 -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2025-03-09 06:33:31,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:33:31,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:33:31,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:33:31,220 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:33:31,220 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:33:31,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-03-09 06:33:32,437 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f704d9f6c/b2dd95d55b4845baa1ad0f0bf8a1fa04/FLAG421a965ff [2025-03-09 06:33:32,758 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:33:32,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-03-09 06:33:32,773 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f704d9f6c/b2dd95d55b4845baa1ad0f0bf8a1fa04/FLAG421a965ff [2025-03-09 06:33:33,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f704d9f6c/b2dd95d55b4845baa1ad0f0bf8a1fa04 [2025-03-09 06:33:33,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:33:33,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:33:33,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:33,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:33:33,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:33:33,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e35fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33, skipping insertion in model container [2025-03-09 06:33:33,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:33:33,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:33,355 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:33:33,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:33,416 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:33:33,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33 WrapperNode [2025-03-09 06:33:33,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:33,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:33,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:33:33,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:33:33,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,444 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 112 [2025-03-09 06:33:33,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:33,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:33:33,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:33:33,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:33:33,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,464 INFO L175 MemorySlicer]: Split 66 memory accesses to 2 slices as follows [16, 50]. 76 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [10, 50]. The 3 writes are split as follows [3, 0]. [2025-03-09 06:33:33,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,471 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:33:33,475 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:33:33,476 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:33:33,476 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:33:33,476 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (1/1) ... [2025-03-09 06:33:33,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:33,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:33,502 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) [2025-03-09 06:33:33,505 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 [2025-03-09 06:33:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:33:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:33:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:33:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:33:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:33:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:33:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:33:33,526 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:33:33,628 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:33:33,629 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:33:33,843 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:33:33,843 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:33:34,092 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:33:34,094 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:33:34,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:34 BoogieIcfgContainer [2025-03-09 06:33:34,094 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:33:34,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:33:34,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:33:34,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:33:34,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:33:33" (1/3) ... [2025-03-09 06:33:34,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4288160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:34, skipping insertion in model container [2025-03-09 06:33:34,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:33" (2/3) ... [2025-03-09 06:33:34,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4288160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:34, skipping insertion in model container [2025-03-09 06:33:34,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:34" (3/3) ... [2025-03-09 06:33:34,103 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2025-03-09 06:33:34,117 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:33:34,118 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.i that has 2 procedures, 35 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2025-03-09 06:33:34,118 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:33:34,150 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:33:34,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 35 transitions, 74 flow [2025-03-09 06:33:34,204 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2025-03-09 06:33:34,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:34,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2025-03-09 06:33:34,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 35 transitions, 74 flow [2025-03-09 06:33:34,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 34 transitions, 71 flow [2025-03-09 06:33:34,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:33:34,233 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;@3bff2dac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:33:34,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-03-09 06:33:34,237 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:33:34,238 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-09 06:33:34,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:34,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:34,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 06:33:34,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:34,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:34,244 INFO L85 PathProgramCache]: Analyzing trace with hash 299346, now seen corresponding path program 1 times [2025-03-09 06:33:34,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:34,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000994399] [2025-03-09 06:33:34,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:34,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:34,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:33:34,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:33:34,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:34,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:34,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:34,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000994399] [2025-03-09 06:33:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000994399] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:34,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:34,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:34,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603397263] [2025-03-09 06:33:34,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:34,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:34,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:34,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:34,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:34,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:34,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2025-03-09 06:33:34,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:34,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:34,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:34,671 INFO L124 PetriNetUnfolderBase]: 51/170 cut-off events. [2025-03-09 06:33:34,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:34,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 170 events. 51/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 634 event pairs, 50 based on Foata normal form. 1/153 useless extension candidates. Maximal degree in co-relation 274. Up to 123 conditions per place. [2025-03-09 06:33:34,674 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 21 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2025-03-09 06:33:34,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 123 flow [2025-03-09 06:33:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2025-03-09 06:33:34,684 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2025-03-09 06:33:34,685 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 71 flow. Second operand 4 states and 79 transitions. [2025-03-09 06:33:34,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 123 flow [2025-03-09 06:33:34,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:33:34,696 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 94 flow [2025-03-09 06:33:34,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2025-03-09 06:33:34,703 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2025-03-09 06:33:34,703 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 94 flow [2025-03-09 06:33:34,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2025-03-09 06:33:34,703 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:34,704 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-09 06:33:34,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:33:34,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:34,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 328126663, now seen corresponding path program 1 times [2025-03-09 06:33:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:34,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233383407] [2025-03-09 06:33:34,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:34,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:33:34,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:33:34,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:34,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:34,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233383407] [2025-03-09 06:33:34,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233383407] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:33:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174974952] [2025-03-09 06:33:34,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:34,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:34,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:34,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:33:34,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:33:34,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:33:34,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:33:34,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:34,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:34,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:33:34,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:33:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:34,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:33:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174974952] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:33:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-09 06:33:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889382153] [2025-03-09 06:33:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:34,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:34,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:34,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:33:34,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:34,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-09 06:33:34,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:34,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:34,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:35,058 INFO L124 PetriNetUnfolderBase]: 51/169 cut-off events. [2025-03-09 06:33:35,059 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 06:33:35,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 169 events. 51/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 625 event pairs, 50 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 291. Up to 118 conditions per place. [2025-03-09 06:33:35,060 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 17 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2025-03-09 06:33:35,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 136 flow [2025-03-09 06:33:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2025-03-09 06:33:35,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2025-03-09 06:33:35,062 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 94 flow. Second operand 6 states and 102 transitions. [2025-03-09 06:33:35,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 136 flow [2025-03-09 06:33:35,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:33:35,063 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 100 flow [2025-03-09 06:33:35,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2025-03-09 06:33:35,063 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2025-03-09 06:33:35,064 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 100 flow [2025-03-09 06:33:35,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-09 06:33:35,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:35,064 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-09 06:33:35,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:33:35,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:35,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:35,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1581992205, now seen corresponding path program 1 times [2025-03-09 06:33:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591471679] [2025-03-09 06:33:35,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:35,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:33:35,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:33:35,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:35,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:33:35,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:35,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591471679] [2025-03-09 06:33:35,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591471679] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:35,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:35,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:35,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569548551] [2025-03-09 06:33:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:35,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:33:35,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:35,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:33:35,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:33:35,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:35,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-09 06:33:35,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:35,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:35,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:35,392 INFO L124 PetriNetUnfolderBase]: 51/168 cut-off events. [2025-03-09 06:33:35,392 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-09 06:33:35,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 168 events. 51/168 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 50 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 287. Up to 121 conditions per place. [2025-03-09 06:33:35,393 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2025-03-09 06:33:35,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 140 flow [2025-03-09 06:33:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:33:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:33:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-09 06:33:35,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2025-03-09 06:33:35,394 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 100 flow. Second operand 3 states and 60 transitions. [2025-03-09 06:33:35,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 140 flow [2025-03-09 06:33:35,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 118 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-09 06:33:35,395 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 82 flow [2025-03-09 06:33:35,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2025-03-09 06:33:35,396 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2025-03-09 06:33:35,396 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 82 flow [2025-03-09 06:33:35,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-09 06:33:35,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:35,396 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:35,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:33:35,396 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:35,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash 494804274, now seen corresponding path program 1 times [2025-03-09 06:33:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680387611] [2025-03-09 06:33:35,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:35,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:33:35,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:33:35,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:35,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:35,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:35,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680387611] [2025-03-09 06:33:35,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680387611] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:33:35,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621155666] [2025-03-09 06:33:35,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:35,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:35,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:35,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:33:35,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:33:35,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:33:35,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:33:35,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:35,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:35,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:33:35,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:33:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:35,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:33:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:35,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621155666] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:33:35,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:33:35,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 06:33:35,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300347062] [2025-03-09 06:33:35,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:33:35,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 06:33:35,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:35,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 06:33:35,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:33:35,613 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:35,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 82 flow. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 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) [2025-03-09 06:33:35,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:35,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:35,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:35,716 INFO L124 PetriNetUnfolderBase]: 51/172 cut-off events. [2025-03-09 06:33:35,716 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-09 06:33:35,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 172 events. 51/172 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 50 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 280. Up to 119 conditions per place. [2025-03-09 06:33:35,717 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 18 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2025-03-09 06:33:35,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 147 flow [2025-03-09 06:33:35,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:33:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:33:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2025-03-09 06:33:35,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4816326530612245 [2025-03-09 06:33:35,719 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 82 flow. Second operand 7 states and 118 transitions. [2025-03-09 06:33:35,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 147 flow [2025-03-09 06:33:35,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 133 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:33:35,720 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 108 flow [2025-03-09 06:33:35,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2025-03-09 06:33:35,721 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2025-03-09 06:33:35,721 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 108 flow [2025-03-09 06:33:35,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 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) [2025-03-09 06:33:35,721 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:35,721 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:35,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 06:33:35,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-09 06:33:35,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:35,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1036668590, now seen corresponding path program 2 times [2025-03-09 06:33:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999772456] [2025-03-09 06:33:35,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:33:35,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:35,935 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-09 06:33:35,940 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 16 statements. [2025-03-09 06:33:35,940 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:33:35,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:33:35,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:35,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999772456] [2025-03-09 06:33:35,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999772456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:35,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:35,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:35,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920125160] [2025-03-09 06:33:35,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:35,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:35,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:35,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:35,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:36,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:36,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2025-03-09 06:33:36,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:36,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:36,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:36,088 INFO L124 PetriNetUnfolderBase]: 51/168 cut-off events. [2025-03-09 06:33:36,088 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-03-09 06:33:36,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 168 events. 51/168 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 579 event pairs, 10 based on Foata normal form. 6/164 useless extension candidates. Maximal degree in co-relation 278. Up to 78 conditions per place. [2025-03-09 06:33:36,091 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 32 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2025-03-09 06:33:36,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 194 flow [2025-03-09 06:33:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2025-03-09 06:33:36,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-03-09 06:33:36,092 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 108 flow. Second operand 4 states and 84 transitions. [2025-03-09 06:33:36,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 194 flow [2025-03-09 06:33:36,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:33:36,094 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 106 flow [2025-03-09 06:33:36,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2025-03-09 06:33:36,094 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2025-03-09 06:33:36,094 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 106 flow [2025-03-09 06:33:36,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2025-03-09 06:33:36,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:36,094 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:36,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:33:36,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:36,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1036431147, now seen corresponding path program 1 times [2025-03-09 06:33:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160945908] [2025-03-09 06:33:36,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:36,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:33:36,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:33:36,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:36,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:33:36,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:36,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160945908] [2025-03-09 06:33:36,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160945908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:36,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:36,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025943130] [2025-03-09 06:33:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:36,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:36,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:36,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:36,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:36,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-03-09 06:33:36,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:36,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:36,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:36,297 INFO L124 PetriNetUnfolderBase]: 57/165 cut-off events. [2025-03-09 06:33:36,297 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-03-09 06:33:36,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 165 events. 57/165 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 542 event pairs, 19 based on Foata normal form. 11/170 useless extension candidates. Maximal degree in co-relation 302. Up to 91 conditions per place. [2025-03-09 06:33:36,298 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 39 selfloop transitions, 4 changer transitions 6/57 dead transitions. [2025-03-09 06:33:36,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 256 flow [2025-03-09 06:33:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2025-03-09 06:33:36,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6457142857142857 [2025-03-09 06:33:36,299 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 106 flow. Second operand 5 states and 113 transitions. [2025-03-09 06:33:36,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 256 flow [2025-03-09 06:33:36,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 57 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:36,301 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 125 flow [2025-03-09 06:33:36,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2025-03-09 06:33:36,302 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 11 predicate places. [2025-03-09 06:33:36,302 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 125 flow [2025-03-09 06:33:36,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-03-09 06:33:36,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:36,302 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:36,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:33:36,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:36,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1200335618, now seen corresponding path program 1 times [2025-03-09 06:33:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:36,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936300342] [2025-03-09 06:33:36,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:36,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:36,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 06:33:36,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 06:33:36,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:36,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936300342] [2025-03-09 06:33:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936300342] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:33:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523263] [2025-03-09 06:33:36,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:36,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:36,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:33:36,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:33:36,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 06:33:36,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 06:33:36,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:36,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:36,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 06:33:36,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:33:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:36,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:33:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:36,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523263] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:33:36,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:33:36,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-09 06:33:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951240409] [2025-03-09 06:33:36,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:33:36,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:33:36,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:36,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:33:36,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:33:36,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:36,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 125 flow. Second operand has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 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) [2025-03-09 06:33:36,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:36,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:36,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:36,853 INFO L124 PetriNetUnfolderBase]: 41/160 cut-off events. [2025-03-09 06:33:36,853 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-03-09 06:33:36,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 160 events. 41/160 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 502 event pairs, 40 based on Foata normal form. 4/155 useless extension candidates. Maximal degree in co-relation 340. Up to 100 conditions per place. [2025-03-09 06:33:36,854 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 19 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2025-03-09 06:33:36,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 241 flow [2025-03-09 06:33:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:33:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-09 06:33:36,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2025-03-09 06:33:36,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4419047619047619 [2025-03-09 06:33:36,856 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 125 flow. Second operand 15 states and 232 transitions. [2025-03-09 06:33:36,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 241 flow [2025-03-09 06:33:36,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 44 transitions, 234 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-09 06:33:36,857 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 215 flow [2025-03-09 06:33:36,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2025-03-09 06:33:36,858 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 26 predicate places. [2025-03-09 06:33:36,858 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 215 flow [2025-03-09 06:33:36,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 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) [2025-03-09 06:33:36,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:36,858 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:36,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 06:33:37,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:37,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:37,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:37,063 INFO L85 PathProgramCache]: Analyzing trace with hash -592651454, now seen corresponding path program 2 times [2025-03-09 06:33:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134081385] [2025-03-09 06:33:37,063 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:33:37,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:37,074 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-03-09 06:33:37,080 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 34 statements. [2025-03-09 06:33:37,080 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:33:37,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-09 06:33:37,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:37,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134081385] [2025-03-09 06:33:37,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134081385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:37,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:37,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436162364] [2025-03-09 06:33:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:37,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:37,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:37,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:37,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:37,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2025-03-09 06:33:37,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:37,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:37,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:37,261 INFO L124 PetriNetUnfolderBase]: 44/159 cut-off events. [2025-03-09 06:33:37,261 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2025-03-09 06:33:37,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 159 events. 44/159 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 485 event pairs, 20 based on Foata normal form. 12/169 useless extension candidates. Maximal degree in co-relation 289. Up to 69 conditions per place. [2025-03-09 06:33:37,263 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 41 selfloop transitions, 4 changer transitions 4/57 dead transitions. [2025-03-09 06:33:37,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 57 transitions, 345 flow [2025-03-09 06:33:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2025-03-09 06:33:37,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-03-09 06:33:37,264 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 215 flow. Second operand 5 states and 105 transitions. [2025-03-09 06:33:37,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 57 transitions, 345 flow [2025-03-09 06:33:37,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 335 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:33:37,269 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 230 flow [2025-03-09 06:33:37,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-03-09 06:33:37,271 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2025-03-09 06:33:37,272 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 230 flow [2025-03-09 06:33:37,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2025-03-09 06:33:37,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:37,272 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:37,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:33:37,272 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:37,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash 928199057, now seen corresponding path program 1 times [2025-03-09 06:33:37,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275307205] [2025-03-09 06:33:37,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:37,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 06:33:37,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 06:33:37,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:37,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:37,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275307205] [2025-03-09 06:33:37,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275307205] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:33:37,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149098815] [2025-03-09 06:33:37,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:37,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:37,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:37,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:33:37,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:33:37,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 06:33:37,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 06:33:37,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:37,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:37,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 06:33:37,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:33:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:37,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:33:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:37,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149098815] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:33:37,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:33:37,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-03-09 06:33:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669097155] [2025-03-09 06:33:37,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:33:37,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 06:33:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:37,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 06:33:37,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-09 06:33:37,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-03-09 06:33:37,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 230 flow. Second operand has 23 states, 23 states have (on average 14.565217391304348) internal successors, (335), 23 states have internal predecessors, (335), 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) [2025-03-09 06:33:37,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:37,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-03-09 06:33:37,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:38,171 INFO L124 PetriNetUnfolderBase]: 40/162 cut-off events. [2025-03-09 06:33:38,172 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2025-03-09 06:33:38,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 162 events. 40/162 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 461 event pairs, 39 based on Foata normal form. 3/162 useless extension candidates. Maximal degree in co-relation 410. Up to 99 conditions per place. [2025-03-09 06:33:38,173 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 20 selfloop transitions, 21 changer transitions 0/51 dead transitions. [2025-03-09 06:33:38,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 51 transitions, 366 flow [2025-03-09 06:33:38,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-09 06:33:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-09 06:33:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 315 transitions. [2025-03-09 06:33:38,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2025-03-09 06:33:38,178 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 230 flow. Second operand 21 states and 315 transitions. [2025-03-09 06:33:38,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 51 transitions, 366 flow [2025-03-09 06:33:38,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 51 transitions, 359 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-09 06:33:38,186 INFO L231 Difference]: Finished difference. Result has 86 places, 51 transitions, 334 flow [2025-03-09 06:33:38,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=334, PETRI_PLACES=86, PETRI_TRANSITIONS=51} [2025-03-09 06:33:38,187 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 49 predicate places. [2025-03-09 06:33:38,187 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 51 transitions, 334 flow [2025-03-09 06:33:38,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.565217391304348) internal successors, (335), 23 states have internal predecessors, (335), 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) [2025-03-09 06:33:38,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:38,187 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:38,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 06:33:38,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:33:38,392 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:38,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1311698688, now seen corresponding path program 2 times [2025-03-09 06:33:38,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:38,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256200927] [2025-03-09 06:33:38,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:33:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:38,404 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-09 06:33:38,408 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 48 statements. [2025-03-09 06:33:38,408 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:33:38,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 06:33:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256200927] [2025-03-09 06:33:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256200927] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153681018] [2025-03-09 06:33:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:38,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:38,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:38,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2025-03-09 06:33:38,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:38,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:38,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2025-03-09 06:33:38,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:38,659 INFO L124 PetriNetUnfolderBase]: 46/165 cut-off events. [2025-03-09 06:33:38,660 INFO L125 PetriNetUnfolderBase]: For 210/211 co-relation queries the response was YES. [2025-03-09 06:33:38,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 165 events. 46/165 cut-off events. For 210/211 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 454 event pairs, 13 based on Foata normal form. 4/168 useless extension candidates. Maximal degree in co-relation 358. Up to 46 conditions per place. [2025-03-09 06:33:38,661 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 54 selfloop transitions, 5 changer transitions 1/66 dead transitions. [2025-03-09 06:33:38,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 66 transitions, 486 flow [2025-03-09 06:33:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-03-09 06:33:38,662 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2025-03-09 06:33:38,662 INFO L175 Difference]: Start difference. First operand has 86 places, 51 transitions, 334 flow. Second operand 6 states and 108 transitions. [2025-03-09 06:33:38,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 66 transitions, 486 flow [2025-03-09 06:33:38,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 443 flow, removed 1 selfloop flow, removed 13 redundant places. [2025-03-09 06:33:38,664 INFO L231 Difference]: Finished difference. Result has 77 places, 50 transitions, 297 flow [2025-03-09 06:33:38,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=77, PETRI_TRANSITIONS=50} [2025-03-09 06:33:38,665 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 40 predicate places. [2025-03-09 06:33:38,665 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 50 transitions, 297 flow [2025-03-09 06:33:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:38,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:38,665 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:33:38,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:38,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:38,666 INFO L85 PathProgramCache]: Analyzing trace with hash -840952080, now seen corresponding path program 1 times [2025-03-09 06:33:38,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:38,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101788550] [2025-03-09 06:33:38,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:38,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 06:33:38,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 06:33:38,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:38,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 06:33:38,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101788550] [2025-03-09 06:33:38,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101788550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:38,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:38,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:38,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381249167] [2025-03-09 06:33:38,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:38,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:33:38,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:38,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:33:38,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:33:38,818 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2025-03-09 06:33:38,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 50 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-09 06:33:38,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:38,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2025-03-09 06:33:38,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:38,913 INFO L124 PetriNetUnfolderBase]: 48/165 cut-off events. [2025-03-09 06:33:38,915 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2025-03-09 06:33:38,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 165 events. 48/165 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 442 event pairs, 27 based on Foata normal form. 3/166 useless extension candidates. Maximal degree in co-relation 363. Up to 91 conditions per place. [2025-03-09 06:33:38,917 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2025-03-09 06:33:38,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 447 flow [2025-03-09 06:33:38,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2025-03-09 06:33:38,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-03-09 06:33:38,918 INFO L175 Difference]: Start difference. First operand has 77 places, 50 transitions, 297 flow. Second operand 6 states and 98 transitions. [2025-03-09 06:33:38,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 63 transitions, 447 flow [2025-03-09 06:33:38,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 63 transitions, 432 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:33:38,922 INFO L231 Difference]: Finished difference. Result has 77 places, 49 transitions, 295 flow [2025-03-09 06:33:38,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=77, PETRI_TRANSITIONS=49} [2025-03-09 06:33:38,922 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 40 predicate places. [2025-03-09 06:33:38,923 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 49 transitions, 295 flow [2025-03-09 06:33:38,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-09 06:33:38,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:38,924 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:38,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:33:38,924 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:38,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:38,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2007953413, now seen corresponding path program 1 times [2025-03-09 06:33:38,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:38,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913222141] [2025-03-09 06:33:38,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:38,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:38,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 06:33:38,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 06:33:38,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:38,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 06:33:39,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:39,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913222141] [2025-03-09 06:33:39,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913222141] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:39,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:39,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:39,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283721167] [2025-03-09 06:33:39,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:39,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:39,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:39,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:39,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:39,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2025-03-09 06:33:39,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 49 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:39,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:39,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2025-03-09 06:33:39,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:39,247 INFO L124 PetriNetUnfolderBase]: 41/152 cut-off events. [2025-03-09 06:33:39,248 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2025-03-09 06:33:39,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 152 events. 41/152 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 10 based on Foata normal form. 3/154 useless extension candidates. Maximal degree in co-relation 355. Up to 43 conditions per place. [2025-03-09 06:33:39,248 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 36 selfloop transitions, 3 changer transitions 19/64 dead transitions. [2025-03-09 06:33:39,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 439 flow [2025-03-09 06:33:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:33:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:33:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2025-03-09 06:33:39,249 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2025-03-09 06:33:39,249 INFO L175 Difference]: Start difference. First operand has 77 places, 49 transitions, 295 flow. Second operand 7 states and 117 transitions. [2025-03-09 06:33:39,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 439 flow [2025-03-09 06:33:39,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 64 transitions, 430 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:33:39,251 INFO L231 Difference]: Finished difference. Result has 77 places, 43 transitions, 265 flow [2025-03-09 06:33:39,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=265, PETRI_PLACES=77, PETRI_TRANSITIONS=43} [2025-03-09 06:33:39,252 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 40 predicate places. [2025-03-09 06:33:39,252 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 43 transitions, 265 flow [2025-03-09 06:33:39,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:39,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:39,252 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:39,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:33:39,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2025-03-09 06:33:39,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash -299710439, now seen corresponding path program 1 times [2025-03-09 06:33:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:39,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686812680] [2025-03-09 06:33:39,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:39,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:39,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 06:33:39,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 06:33:39,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:39,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:39,436 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 06:33:39,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:39,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686812680] [2025-03-09 06:33:39,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686812680] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:39,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:39,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:39,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042235654] [2025-03-09 06:33:39,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:39,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:39,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:39,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:39,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2025-03-09 06:33:39,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 43 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:39,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:39,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2025-03-09 06:33:39,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:39,517 INFO L124 PetriNetUnfolderBase]: 13/80 cut-off events. [2025-03-09 06:33:39,517 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2025-03-09 06:33:39,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 80 events. 13/80 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 6 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 236. Up to 43 conditions per place. [2025-03-09 06:33:39,518 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2025-03-09 06:33:39,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 46 transitions, 349 flow [2025-03-09 06:33:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:39,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2025-03-09 06:33:39,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2025-03-09 06:33:39,519 INFO L175 Difference]: Start difference. First operand has 77 places, 43 transitions, 265 flow. Second operand 6 states and 88 transitions. [2025-03-09 06:33:39,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 46 transitions, 349 flow [2025-03-09 06:33:39,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 46 transitions, 337 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-09 06:33:39,521 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2025-03-09 06:33:39,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2025-03-09 06:33:39,522 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2025-03-09 06:33:39,522 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2025-03-09 06:33:39,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:33:39,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2025-03-09 06:33:39,526 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2025-03-09 06:33:39,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:33:39,527 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:39,531 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:33:39,531 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:33:39,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:33:39 BasicIcfg [2025-03-09 06:33:39,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:33:39,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:33:39,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:33:39,537 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:33:39,538 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:34" (3/4) ... [2025-03-09 06:33:39,539 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:33:39,541 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-09 06:33:39,544 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2025-03-09 06:33:39,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-03-09 06:33:39,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-09 06:33:39,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 06:33:39,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 06:33:39,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:33:39,618 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:33:39,619 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:33:39,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:33:39,620 INFO L158 Benchmark]: Toolchain (without parser) took 6584.69ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 111.8MB in the beginning and 230.9MB in the end (delta: -119.1MB). Peak memory consumption was 165.5MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,620 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:39,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.60ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 91.0MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.44ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,620 INFO L158 Benchmark]: Boogie Preprocessor took 30.17ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:39,620 INFO L158 Benchmark]: IcfgBuilder took 618.70ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 71.7MB in the end (delta: 15.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,621 INFO L158 Benchmark]: TraceAbstraction took 5440.97ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 71.0MB in the beginning and 240.0MB in the end (delta: -169.0MB). Peak memory consumption was 118.1MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,621 INFO L158 Benchmark]: Witness Printer took 82.23ms. Allocated memory is still 427.8MB. Free memory was 240.0MB in the beginning and 230.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:39,622 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.60ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 91.0MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.44ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.17ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 618.70ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 71.7MB in the end (delta: 15.3MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5440.97ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 71.0MB in the beginning and 240.0MB in the end (delta: -169.0MB). Peak memory consumption was 118.1MB. Max. memory is 16.1GB. * Witness Printer took 82.23ms. Allocated memory is still 427.8MB. Free memory was 240.0MB in the beginning and 230.9MB in the end (delta: 9.0MB). 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: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: 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: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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, 46 locations, 45 edges, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1289 IncrementalHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 20 mSDtfsCounter, 1289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 120 SyntacticMatches, 11 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=9, InterpolantAutomatonStates: 95, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 424 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 2301 SizeOfPredicates, 13 NumberOfNonLiveVariables, 871 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 679/930 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! [2025-03-09 06:33:39,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE