./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:55:58,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:55:58,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:55:58,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:55:58,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:55:58,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:55:58,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:55:58,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:55:58,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:55:58,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:55:58,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:55:58,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:55:58,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:55:58,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:55:58,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:55:58,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:55:58,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:55:58,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:55:58,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:55:58,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:55:58,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:55:58,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:55:58,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:55:58,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:55:58,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:55:58,997 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:55:58,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:55:58,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:55:58,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:55:58,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:55:58,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:55:58,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:55:58,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:55:59,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:55:59,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:55:59,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:55:59,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:55:59,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:55:59,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:55:59,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:55:59,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:55:59,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:55:59,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:55:59,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:55:59,007 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2024-10-11 23:55:59,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:55:59,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:55:59,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:55:59,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:55:59,282 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:55:59,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-10-11 23:56:00,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:56:00,981 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:56:00,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-10-11 23:56:00,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/aefd87775/e11ca278372f4029b9388cbb15353de4/FLAG6f1fdf3ea [2024-10-11 23:56:01,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/aefd87775/e11ca278372f4029b9388cbb15353de4 [2024-10-11 23:56:01,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:56:01,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:56:01,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:56:01,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:56:01,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:56:01,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b43c32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01, skipping insertion in model container [2024-10-11 23:56:01,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:56:01,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:56:01,430 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:56:01,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:56:01,533 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:56:01,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01 WrapperNode [2024-10-11 23:56:01,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:56:01,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:56:01,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:56:01,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:56:01,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,571 INFO L138 Inliner]: procedures = 161, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-10-11 23:56:01,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:56:01,573 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:56:01,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:56:01,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:56:01,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,597 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-10-11 23:56:01,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:56:01,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:56:01,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:56:01,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:56:01,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (1/1) ... [2024-10-11 23:56:01,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:56:01,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:56:01,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:56:01,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:56:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 23:56:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:56:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 23:56:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 23:56:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 23:56:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:56:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:56:01,719 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:56:01,866 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:56:01,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:56:02,126 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:56:02,127 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:56:02,186 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:56:02,186 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 23:56:02,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:56:02 BoogieIcfgContainer [2024-10-11 23:56:02,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:56:02,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:56:02,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:56:02,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:56:02,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:56:01" (1/3) ... [2024-10-11 23:56:02,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215f2e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:56:02, skipping insertion in model container [2024-10-11 23:56:02,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:56:01" (2/3) ... [2024-10-11 23:56:02,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215f2e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:56:02, skipping insertion in model container [2024-10-11 23:56:02,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:56:02" (3/3) ... [2024-10-11 23:56:02,194 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2024-10-11 23:56:02,208 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:56:02,208 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 23:56:02,208 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:56:02,235 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 23:56:02,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-10-11 23:56:02,281 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-11 23:56:02,281 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:56:02,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-10-11 23:56:02,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-10-11 23:56:02,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-10-11 23:56:02,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:56:02,302 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;@61f21972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:56:02,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-11 23:56:02,306 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:56:02,306 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-11 23:56:02,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:56:02,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:02,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 23:56:02,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:02,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:02,315 INFO L85 PathProgramCache]: Analyzing trace with hash 162888, now seen corresponding path program 1 times [2024-10-11 23:56:02,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:02,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778412539] [2024-10-11 23:56:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:02,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:02,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:02,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778412539] [2024-10-11 23:56:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778412539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:02,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:02,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666336737] [2024-10-11 23:56:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:02,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:02,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:02,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:02,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-11 23:56:02,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:02,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:02,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:02,711 INFO L124 PetriNetUnfolderBase]: 31/100 cut-off events. [2024-10-11 23:56:02,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:56:02,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 100 events. 31/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 338 event pairs, 30 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 164. Up to 74 conditions per place. [2024-10-11 23:56:02,714 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 13 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2024-10-11 23:56:02,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 87 flow [2024-10-11 23:56:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:56:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:56:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-10-11 23:56:02,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-11 23:56:02,730 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 54 transitions. [2024-10-11 23:56:02,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 87 flow [2024-10-11 23:56:02,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:56:02,735 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 60 flow [2024-10-11 23:56:02,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2024-10-11 23:56:02,740 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2024-10-11 23:56:02,740 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 60 flow [2024-10-11 23:56:02,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-11 23:56:02,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:02,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 23:56:02,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:56:02,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:02,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash 5049684, now seen corresponding path program 1 times [2024-10-11 23:56:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:02,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096863446] [2024-10-11 23:56:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:02,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:02,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096863446] [2024-10-11 23:56:02,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096863446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:02,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:02,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072286282] [2024-10-11 23:56:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:02,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:02,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:02,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:02,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:02,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-11 23:56:02,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:02,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:02,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:02,938 INFO L124 PetriNetUnfolderBase]: 31/103 cut-off events. [2024-10-11 23:56:02,938 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 23:56:02,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 103 events. 31/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 345 event pairs, 30 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 168. Up to 78 conditions per place. [2024-10-11 23:56:02,940 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 16 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2024-10-11 23:56:02,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 106 flow [2024-10-11 23:56:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:56:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:56:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2024-10-11 23:56:02,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-10-11 23:56:02,943 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 60 flow. Second operand 4 states and 57 transitions. [2024-10-11 23:56:02,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 106 flow [2024-10-11 23:56:02,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:56:02,944 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 74 flow [2024-10-11 23:56:02,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2024-10-11 23:56:02,947 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-10-11 23:56:02,948 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 74 flow [2024-10-11 23:56:02,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-10-11 23:56:02,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:02,949 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-11 23:56:02,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:56:02,950 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:02,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:02,950 INFO L85 PathProgramCache]: Analyzing trace with hash 111444644, now seen corresponding path program 1 times [2024-10-11 23:56:02,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:02,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712358069] [2024-10-11 23:56:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:02,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:03,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:03,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712358069] [2024-10-11 23:56:03,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712358069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:03,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:03,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830795624] [2024-10-11 23:56:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:03,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:56:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:56:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:56:03,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:03,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-11 23:56:03,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:03,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:03,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:03,100 INFO L124 PetriNetUnfolderBase]: 31/102 cut-off events. [2024-10-11 23:56:03,101 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 23:56:03,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 102 events. 31/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 340 event pairs, 30 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 178. Up to 77 conditions per place. [2024-10-11 23:56:03,105 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 14 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-10-11 23:56:03,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 106 flow [2024-10-11 23:56:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:56:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:56:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-10-11 23:56:03,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5432098765432098 [2024-10-11 23:56:03,108 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 74 flow. Second operand 3 states and 44 transitions. [2024-10-11 23:56:03,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 106 flow [2024-10-11 23:56:03,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:56:03,111 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 76 flow [2024-10-11 23:56:03,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2024-10-11 23:56:03,112 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-10-11 23:56:03,115 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 76 flow [2024-10-11 23:56:03,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-11 23:56:03,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:03,115 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:03,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:56:03,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:03,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash 77734548, now seen corresponding path program 1 times [2024-10-11 23:56:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:03,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725705309] [2024-10-11 23:56:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:03,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:03,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:03,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725705309] [2024-10-11 23:56:03,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725705309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:03,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:03,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:03,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059337421] [2024-10-11 23:56:03,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:03,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:03,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:03,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 23:56:03,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:03,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:03,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:03,319 INFO L124 PetriNetUnfolderBase]: 46/135 cut-off events. [2024-10-11 23:56:03,319 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-11 23:56:03,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 135 events. 46/135 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 488 event pairs, 14 based on Foata normal form. 6/127 useless extension candidates. Maximal degree in co-relation 245. Up to 49 conditions per place. [2024-10-11 23:56:03,320 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 6 changer transitions 6/42 dead transitions. [2024-10-11 23:56:03,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 180 flow [2024-10-11 23:56:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:56:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:56:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-10-11 23:56:03,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-11 23:56:03,323 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 76 flow. Second operand 5 states and 81 transitions. [2024-10-11 23:56:03,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 180 flow [2024-10-11 23:56:03,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 42 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:56:03,325 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 106 flow [2024-10-11 23:56:03,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2024-10-11 23:56:03,326 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2024-10-11 23:56:03,327 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 106 flow [2024-10-11 23:56:03,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 23:56:03,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:03,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:03,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:56:03,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:03,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash 77998694, now seen corresponding path program 1 times [2024-10-11 23:56:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:03,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966353488] [2024-10-11 23:56:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:03,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966353488] [2024-10-11 23:56:03,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966353488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:03,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:03,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:03,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632404171] [2024-10-11 23:56:03,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:03,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:03,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:03,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:03,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:03,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2024-10-11 23:56:03,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:03,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:03,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:03,556 INFO L124 PetriNetUnfolderBase]: 43/138 cut-off events. [2024-10-11 23:56:03,556 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-11 23:56:03,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 138 events. 43/138 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 537 event pairs, 21 based on Foata normal form. 7/143 useless extension candidates. Maximal degree in co-relation 301. Up to 55 conditions per place. [2024-10-11 23:56:03,557 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 25 selfloop transitions, 7 changer transitions 6/45 dead transitions. [2024-10-11 23:56:03,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 230 flow [2024-10-11 23:56:03,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:56:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:56:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-10-11 23:56:03,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-11 23:56:03,559 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 106 flow. Second operand 5 states and 81 transitions. [2024-10-11 23:56:03,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 230 flow [2024-10-11 23:56:03,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:56:03,563 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 152 flow [2024-10-11 23:56:03,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-10-11 23:56:03,565 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2024-10-11 23:56:03,566 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 152 flow [2024-10-11 23:56:03,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2024-10-11 23:56:03,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:03,567 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:03,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:56:03,567 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:03,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1885196146, now seen corresponding path program 1 times [2024-10-11 23:56:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041502573] [2024-10-11 23:56:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:03,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:03,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041502573] [2024-10-11 23:56:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041502573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:03,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:03,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933777675] [2024-10-11 23:56:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:03,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:03,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:03,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:03,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:03,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:03,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 23:56:03,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:03,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:03,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:03,715 INFO L124 PetriNetUnfolderBase]: 24/98 cut-off events. [2024-10-11 23:56:03,715 INFO L125 PetriNetUnfolderBase]: For 115/117 co-relation queries the response was YES. [2024-10-11 23:56:03,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 98 events. 24/98 cut-off events. For 115/117 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 334 event pairs, 10 based on Foata normal form. 8/104 useless extension candidates. Maximal degree in co-relation 242. Up to 43 conditions per place. [2024-10-11 23:56:03,719 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 6 changer transitions 1/38 dead transitions. [2024-10-11 23:56:03,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 228 flow [2024-10-11 23:56:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:56:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:56:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2024-10-11 23:56:03,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 23:56:03,721 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 152 flow. Second operand 5 states and 75 transitions. [2024-10-11 23:56:03,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 228 flow [2024-10-11 23:56:03,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:56:03,727 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 147 flow [2024-10-11 23:56:03,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2024-10-11 23:56:03,728 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-10-11 23:56:03,729 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 147 flow [2024-10-11 23:56:03,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-10-11 23:56:03,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:03,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:03,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:56:03,732 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:03,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1877007605, now seen corresponding path program 1 times [2024-10-11 23:56:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:03,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62033265] [2024-10-11 23:56:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:03,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:03,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62033265] [2024-10-11 23:56:03,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62033265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:03,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:03,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:56:03,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021388888] [2024-10-11 23:56:03,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:03,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:56:03,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:03,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:56:03,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:56:03,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:03,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2024-10-11 23:56:03,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:03,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:03,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:03,894 INFO L124 PetriNetUnfolderBase]: 24/92 cut-off events. [2024-10-11 23:56:03,895 INFO L125 PetriNetUnfolderBase]: For 143/145 co-relation queries the response was YES. [2024-10-11 23:56:03,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 92 events. 24/92 cut-off events. For 143/145 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 291 event pairs, 9 based on Foata normal form. 9/99 useless extension candidates. Maximal degree in co-relation 235. Up to 40 conditions per place. [2024-10-11 23:56:03,896 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 5 changer transitions 2/37 dead transitions. [2024-10-11 23:56:03,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 37 transitions, 227 flow [2024-10-11 23:56:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:56:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:56:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-10-11 23:56:03,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2024-10-11 23:56:03,900 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 147 flow. Second operand 5 states and 76 transitions. [2024-10-11 23:56:03,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 37 transitions, 227 flow [2024-10-11 23:56:03,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 205 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-11 23:56:03,904 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 125 flow [2024-10-11 23:56:03,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=48, PETRI_TRANSITIONS=28} [2024-10-11 23:56:03,906 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2024-10-11 23:56:03,906 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 125 flow [2024-10-11 23:56:03,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2024-10-11 23:56:03,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:03,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:03,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 23:56:03,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:03,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 311769839, now seen corresponding path program 1 times [2024-10-11 23:56:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:03,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290465602] [2024-10-11 23:56:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:03,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:56:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:04,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290465602] [2024-10-11 23:56:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290465602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:04,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:56:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287874802] [2024-10-11 23:56:04,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:04,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:56:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:56:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:56:04,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2024-10-11 23:56:04,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 28 transitions, 125 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) [2024-10-11 23:56:04,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:04,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2024-10-11 23:56:04,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:04,072 INFO L124 PetriNetUnfolderBase]: 10/58 cut-off events. [2024-10-11 23:56:04,072 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-11 23:56:04,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 58 events. 10/58 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 130 event pairs, 2 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 138. Up to 24 conditions per place. [2024-10-11 23:56:04,073 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 19 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2024-10-11 23:56:04,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 31 transitions, 177 flow [2024-10-11 23:56:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:56:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:56:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-10-11 23:56:04,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 23:56:04,076 INFO L175 Difference]: Start difference. First operand has 48 places, 28 transitions, 125 flow. Second operand 3 states and 54 transitions. [2024-10-11 23:56:04,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 31 transitions, 177 flow [2024-10-11 23:56:04,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 31 transitions, 164 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-11 23:56:04,078 INFO L231 Difference]: Finished difference. Result has 46 places, 28 transitions, 120 flow [2024-10-11 23:56:04,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2024-10-11 23:56:04,079 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2024-10-11 23:56:04,080 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 120 flow [2024-10-11 23:56:04,080 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) [2024-10-11 23:56:04,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:04,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:04,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 23:56:04,081 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:04,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:04,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1555824312, now seen corresponding path program 1 times [2024-10-11 23:56:04,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:04,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894370224] [2024-10-11 23:56:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:04,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894370224] [2024-10-11 23:56:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894370224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:56:04,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934882938] [2024-10-11 23:56:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:04,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:56:04,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:56:04,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 23:56:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:04,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 23:56:04,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:56:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:04,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:56:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934882938] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:56:04,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:56:04,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-11 23:56:04,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17947912] [2024-10-11 23:56:04,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:56:04,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:56:04,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:56:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:56:04,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:04,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 120 flow. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2024-10-11 23:56:04,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:04,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:04,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:04,382 INFO L124 PetriNetUnfolderBase]: 10/62 cut-off events. [2024-10-11 23:56:04,383 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-11 23:56:04,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 62 events. 10/62 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 125 event pairs, 9 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 132. Up to 37 conditions per place. [2024-10-11 23:56:04,384 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2024-10-11 23:56:04,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 31 transitions, 178 flow [2024-10-11 23:56:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:56:04,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:56:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2024-10-11 23:56:04,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455026455026455 [2024-10-11 23:56:04,389 INFO L175 Difference]: Start difference. First operand has 46 places, 28 transitions, 120 flow. Second operand 7 states and 86 transitions. [2024-10-11 23:56:04,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 31 transitions, 178 flow [2024-10-11 23:56:04,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 31 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:56:04,391 INFO L231 Difference]: Finished difference. Result has 53 places, 31 transitions, 153 flow [2024-10-11 23:56:04,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=31} [2024-10-11 23:56:04,391 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2024-10-11 23:56:04,391 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 31 transitions, 153 flow [2024-10-11 23:56:04,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2024-10-11 23:56:04,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:04,392 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:04,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 23:56:04,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:04,593 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:04,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:04,593 INFO L85 PathProgramCache]: Analyzing trace with hash 958670356, now seen corresponding path program 2 times [2024-10-11 23:56:04,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:04,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259000284] [2024-10-11 23:56:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:04,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259000284] [2024-10-11 23:56:04,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259000284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:56:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545204115] [2024-10-11 23:56:04,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:56:04,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:04,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:56:04,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:56:04,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 23:56:04,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 23:56:04,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:56:04,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 23:56:04,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:56:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:56:04,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:56:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545204115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:04,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:56:04,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-10-11 23:56:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746396858] [2024-10-11 23:56:04,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:04,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:56:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:56:04,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:56:04,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-11 23:56:04,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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) [2024-10-11 23:56:04,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:04,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-11 23:56:04,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:04,936 INFO L124 PetriNetUnfolderBase]: 13/61 cut-off events. [2024-10-11 23:56:04,937 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-11 23:56:04,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 61 events. 13/61 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 6 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 133. Up to 33 conditions per place. [2024-10-11 23:56:04,938 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-10-11 23:56:04,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 209 flow [2024-10-11 23:56:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:56:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:56:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-10-11 23:56:04,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-11 23:56:04,939 INFO L175 Difference]: Start difference. First operand has 53 places, 31 transitions, 153 flow. Second operand 5 states and 54 transitions. [2024-10-11 23:56:04,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 209 flow [2024-10-11 23:56:04,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 32 transitions, 189 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-11 23:56:04,942 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 139 flow [2024-10-11 23:56:04,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2024-10-11 23:56:04,943 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2024-10-11 23:56:04,943 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 139 flow [2024-10-11 23:56:04,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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) [2024-10-11 23:56:04,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:04,944 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:04,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 23:56:05,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:05,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:05,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:05,149 INFO L85 PathProgramCache]: Analyzing trace with hash -345989859, now seen corresponding path program 1 times [2024-10-11 23:56:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:05,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452671896] [2024-10-11 23:56:05,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:56:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452671896] [2024-10-11 23:56:05,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452671896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:05,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:56:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534942585] [2024-10-11 23:56:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:05,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:56:05,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:56:05,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:56:05,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-10-11 23:56:05,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 29 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2024-10-11 23:56:05,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:05,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-10-11 23:56:05,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:05,352 INFO L124 PetriNetUnfolderBase]: 11/57 cut-off events. [2024-10-11 23:56:05,353 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-11 23:56:05,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 57 events. 11/57 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 5 based on Foata normal form. 2/58 useless extension candidates. Maximal degree in co-relation 120. Up to 19 conditions per place. [2024-10-11 23:56:05,353 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2024-10-11 23:56:05,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 33 transitions, 205 flow [2024-10-11 23:56:05,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:56:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:56:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 74 transitions. [2024-10-11 23:56:05,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3915343915343915 [2024-10-11 23:56:05,355 INFO L175 Difference]: Start difference. First operand has 48 places, 29 transitions, 139 flow. Second operand 7 states and 74 transitions. [2024-10-11 23:56:05,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 33 transitions, 205 flow [2024-10-11 23:56:05,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 33 transitions, 189 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 23:56:05,356 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 105 flow [2024-10-11 23:56:05,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=105, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2024-10-11 23:56:05,357 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2024-10-11 23:56:05,357 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 105 flow [2024-10-11 23:56:05,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2024-10-11 23:56:05,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:05,358 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:05,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 23:56:05,358 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:05,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 840794320, now seen corresponding path program 1 times [2024-10-11 23:56:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297508725] [2024-10-11 23:56:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:05,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:05,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297508725] [2024-10-11 23:56:05,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297508725] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:56:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351842689] [2024-10-11 23:56:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:05,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:05,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:56:05,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:56:05,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 23:56:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:05,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 23:56:05,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:56:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:05,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:56:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:56:05,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351842689] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:56:05,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:56:05,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-11 23:56:05,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770572003] [2024-10-11 23:56:05,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:56:05,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 23:56:05,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 23:56:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-11 23:56:05,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 23:56:05,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 23 transitions, 105 flow. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 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) [2024-10-11 23:56:05,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:05,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 23:56:05,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:05,807 INFO L124 PetriNetUnfolderBase]: 8/55 cut-off events. [2024-10-11 23:56:05,807 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-11 23:56:05,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 55 events. 8/55 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 7 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 98. Up to 27 conditions per place. [2024-10-11 23:56:05,809 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 11 selfloop transitions, 15 changer transitions 0/31 dead transitions. [2024-10-11 23:56:05,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 31 transitions, 205 flow [2024-10-11 23:56:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 23:56:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 23:56:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 165 transitions. [2024-10-11 23:56:05,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-10-11 23:56:05,810 INFO L175 Difference]: Start difference. First operand has 47 places, 23 transitions, 105 flow. Second operand 15 states and 165 transitions. [2024-10-11 23:56:05,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 31 transitions, 205 flow [2024-10-11 23:56:05,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 31 transitions, 187 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-11 23:56:05,812 INFO L231 Difference]: Finished difference. Result has 50 places, 31 transitions, 184 flow [2024-10-11 23:56:05,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=184, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2024-10-11 23:56:05,812 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 21 predicate places. [2024-10-11 23:56:05,812 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 184 flow [2024-10-11 23:56:05,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 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) [2024-10-11 23:56:05,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:56:05,813 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:05,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 23:56:06,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:56:06,014 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 23:56:06,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:56:06,014 INFO L85 PathProgramCache]: Analyzing trace with hash 272762064, now seen corresponding path program 2 times [2024-10-11 23:56:06,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:56:06,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662187485] [2024-10-11 23:56:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:56:06,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:56:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:56:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-11 23:56:06,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:56:06,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662187485] [2024-10-11 23:56:06,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662187485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:56:06,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:56:06,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:56:06,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988317892] [2024-10-11 23:56:06,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:56:06,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:56:06,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:56:06,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:56:06,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:56:06,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-10-11 23:56:06,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2024-10-11 23:56:06,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:56:06,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-10-11 23:56:06,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:56:06,197 INFO L124 PetriNetUnfolderBase]: 8/53 cut-off events. [2024-10-11 23:56:06,198 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-11 23:56:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 53 events. 8/53 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 2 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 103. Up to 23 conditions per place. [2024-10-11 23:56:06,198 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-10-11 23:56:06,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 34 transitions, 250 flow [2024-10-11 23:56:06,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:56:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:56:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-10-11 23:56:06,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2024-10-11 23:56:06,199 INFO L175 Difference]: Start difference. First operand has 50 places, 31 transitions, 184 flow. Second operand 6 states and 60 transitions. [2024-10-11 23:56:06,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 34 transitions, 250 flow [2024-10-11 23:56:06,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 232 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-11 23:56:06,201 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-10-11 23:56:06,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-10-11 23:56:06,202 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-10-11 23:56:06,202 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-10-11 23:56:06,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2024-10-11 23:56:06,204 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-10-11 23:56:06,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-10-11 23:56:06,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-10-11 23:56:06,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-10-11 23:56:06,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-11 23:56:06,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-10-11 23:56:06,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-10-11 23:56:06,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-10-11 23:56:06,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-10-11 23:56:06,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 23:56:06,206 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:56:06,211 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 23:56:06,211 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:56:06,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:56:06 BasicIcfg [2024-10-11 23:56:06,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:56:06,219 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:56:06,219 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:56:06,219 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:56:06,219 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:56:02" (3/4) ... [2024-10-11 23:56:06,221 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 23:56:06,224 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 23:56:06,227 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-11 23:56:06,227 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-11 23:56:06,228 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 23:56:06,303 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 23:56:06,303 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 23:56:06,304 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:56:06,305 INFO L158 Benchmark]: Toolchain (without parser) took 5288.19ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 102.8MB in the beginning and 183.2MB in the end (delta: -80.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:56:06,305 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:56:06,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.29ms. Allocated memory is still 159.4MB. Free memory was 102.8MB in the beginning and 81.0MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.00ms. Allocated memory is still 159.4MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,306 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 159.4MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,306 INFO L158 Benchmark]: RCFGBuilder took 571.61ms. Allocated memory is still 159.4MB. Free memory was 77.2MB in the beginning and 121.7MB in the end (delta: -44.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,306 INFO L158 Benchmark]: TraceAbstraction took 4029.91ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 121.2MB in the beginning and 186.4MB in the end (delta: -65.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,306 INFO L158 Benchmark]: Witness Printer took 85.53ms. Allocated memory is still 224.4MB. Free memory was 186.4MB in the beginning and 183.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:56:06,308 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.29ms. Allocated memory is still 159.4MB. Free memory was 102.8MB in the beginning and 81.0MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.00ms. Allocated memory is still 159.4MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 159.4MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.61ms. Allocated memory is still 159.4MB. Free memory was 77.2MB in the beginning and 121.7MB in the end (delta: -44.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4029.91ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 121.2MB in the beginning and 186.4MB in the end (delta: -65.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 85.53ms. Allocated memory is still 224.4MB. Free memory was 186.4MB in the beginning and 183.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. 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: 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, 38 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 826 IncrementalHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 36 mSDtfsCounter, 826 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=12, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 251 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 5 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 102/153 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 23:56:06,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE