./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:35:52,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:35:52,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:35:52,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:35:52,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:35:52,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:35:52,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:35:52,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:35:52,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:35:52,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:35:52,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:35:52,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:35:52,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:35:52,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:35:52,467 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:35:52,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:35:52,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:35:52,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:35:52,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:35:52,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:35:52,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:35:52,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:35:52,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:35:52,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:35:52,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:35:52,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:35:52,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:35:52,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:35:52,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:35:52,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:35:52,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:35:52,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:35:52,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:35:52,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:35:52,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:35:52,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:35:52,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:35:52,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:35:52,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:35:52,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:35:52,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:35:52,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:35:52,477 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 [2024-11-18 10:35:52,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:35:52,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:35:52,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:35:52,745 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:35:52,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:35:52,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2024-11-18 10:35:54,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:35:54,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:35:54,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2024-11-18 10:35:54,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86146d23f/7178d74ebdd640dca4473fba30dc6ae1/FLAG7270da092 [2024-11-18 10:35:54,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86146d23f/7178d74ebdd640dca4473fba30dc6ae1 [2024-11-18 10:35:54,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:35:54,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:35:54,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:35:54,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:35:54,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:35:54,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:35:54" (1/1) ... [2024-11-18 10:35:54,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6558c49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:54, skipping insertion in model container [2024-11-18 10:35:54,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:35:54" (1/1) ... [2024-11-18 10:35:54,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:35:55,072 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2024-11-18 10:35:55,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:35:55,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:35:55,327 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2024-11-18 10:35:55,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:35:55,453 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:35:55,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55 WrapperNode [2024-11-18 10:35:55,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:35:55,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:35:55,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:35:55,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:35:55,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,578 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-18 10:35:55,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:35:55,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:35:55,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:35:55,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:35:55,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,630 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:35:55,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:35:55,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:35:55,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:35:55,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:35:55,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (1/1) ... [2024-11-18 10:35:55,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:35:55,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:35:55,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:35:55,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:35:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:35:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:35:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:35:55,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:35:55,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:35:55,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:35:57,003 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-18 10:35:57,004 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:35:57,028 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:35:57,029 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:35:57,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:35:57 BoogieIcfgContainer [2024-11-18 10:35:57,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:35:57,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:35:57,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:35:57,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:35:57,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:35:54" (1/3) ... [2024-11-18 10:35:57,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344743dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:35:57, skipping insertion in model container [2024-11-18 10:35:57,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:35:55" (2/3) ... [2024-11-18 10:35:57,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344743dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:35:57, skipping insertion in model container [2024-11-18 10:35:57,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:35:57" (3/3) ... [2024-11-18 10:35:57,040 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2024-11-18 10:35:57,058 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:35:57,058 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:35:57,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:35:57,141 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;@1c916690, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:35:57,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:35:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2024-11-18 10:35:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 10:35:57,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:57,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:57,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:57,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2024-11-18 10:35:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:57,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656730651] [2024-11-18 10:35:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:57,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:57,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:57,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656730651] [2024-11-18 10:35:57,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656730651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:57,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:57,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:35:57,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17721812] [2024-11-18 10:35:57,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:57,646 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2024-11-18 10:35:58,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:58,638 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2024-11-18 10:35:58,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:58,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) Word has length 51 [2024-11-18 10:35:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:58,652 INFO L225 Difference]: With dead ends: 669 [2024-11-18 10:35:58,652 INFO L226 Difference]: Without dead ends: 360 [2024-11-18 10:35:58,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:58,659 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 159 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:58,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 10:35:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-18 10:35:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-18 10:35:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 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) [2024-11-18 10:35:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2024-11-18 10:35:58,715 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 51 [2024-11-18 10:35:58,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:58,716 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2024-11-18 10:35:58,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2024-11-18 10:35:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2024-11-18 10:35:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 10:35:58,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:58,720 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:58,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:35:58,721 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:58,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1080800965, now seen corresponding path program 1 times [2024-11-18 10:35:58,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:58,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952073241] [2024-11-18 10:35:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:58,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952073241] [2024-11-18 10:35:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952073241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:35:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601484619] [2024-11-18 10:35:58,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:58,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:58,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:58,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:58,968 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2024-11-18 10:35:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:59,624 INFO L93 Difference]: Finished difference Result 1076 states and 1634 transitions. [2024-11-18 10:35:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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) Word has length 126 [2024-11-18 10:35:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:59,629 INFO L225 Difference]: With dead ends: 1076 [2024-11-18 10:35:59,629 INFO L226 Difference]: Without dead ends: 718 [2024-11-18 10:35:59,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:59,632 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:59,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 96 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:35:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-18 10:35:59,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2024-11-18 10:35:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.3552447552447553) internal successors, (969), 715 states have internal predecessors, (969), 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) [2024-11-18 10:35:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 969 transitions. [2024-11-18 10:35:59,658 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 969 transitions. Word has length 126 [2024-11-18 10:35:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:59,659 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 969 transitions. [2024-11-18 10:35:59,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2024-11-18 10:35:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 969 transitions. [2024-11-18 10:35:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 10:35:59,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:59,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:59,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:35:59,663 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:59,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1002073487, now seen corresponding path program 1 times [2024-11-18 10:35:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:59,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688790921] [2024-11-18 10:35:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:59,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688790921] [2024-11-18 10:35:59,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688790921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:59,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:59,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257383713] [2024-11-18 10:35:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:59,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:35:59,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:35:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:35:59,993 INFO L87 Difference]: Start difference. First operand 716 states and 969 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-18 10:36:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:00,845 INFO L93 Difference]: Finished difference Result 1966 states and 2575 transitions. [2024-11-18 10:36:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:36:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) Word has length 130 [2024-11-18 10:36:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:00,852 INFO L225 Difference]: With dead ends: 1966 [2024-11-18 10:36:00,853 INFO L226 Difference]: Without dead ends: 1252 [2024-11-18 10:36:00,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:36:00,856 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 421 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:00,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 123 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:36:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-18 10:36:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2024-11-18 10:36:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2377902321857486) internal successors, (1546), 1249 states have internal predecessors, (1546), 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) [2024-11-18 10:36:00,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1546 transitions. [2024-11-18 10:36:00,896 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1546 transitions. Word has length 130 [2024-11-18 10:36:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:00,898 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1546 transitions. [2024-11-18 10:36:00,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-18 10:36:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1546 transitions. [2024-11-18 10:36:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-18 10:36:00,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:00,907 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:00,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:36:00,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:00,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash 313256988, now seen corresponding path program 1 times [2024-11-18 10:36:00,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:00,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139770899] [2024-11-18 10:36:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:00,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 10:36:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:01,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139770899] [2024-11-18 10:36:01,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139770899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:01,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:01,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:01,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233201705] [2024-11-18 10:36:01,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:01,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:36:01,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:01,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:36:01,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:36:01,232 INFO L87 Difference]: Start difference. First operand 1250 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-18 10:36:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:01,966 INFO L93 Difference]: Finished difference Result 2707 states and 3359 transitions. [2024-11-18 10:36:01,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:36:01,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) Word has length 210 [2024-11-18 10:36:01,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:01,975 INFO L225 Difference]: With dead ends: 2707 [2024-11-18 10:36:01,975 INFO L226 Difference]: Without dead ends: 1608 [2024-11-18 10:36:01,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:36:01,978 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 104 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:01,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 122 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:36:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-11-18 10:36:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2024-11-18 10:36:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.12398753894081) internal successors, (1804), 1605 states have internal predecessors, (1804), 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) [2024-11-18 10:36:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1804 transitions. [2024-11-18 10:36:02,039 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1804 transitions. Word has length 210 [2024-11-18 10:36:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:02,040 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1804 transitions. [2024-11-18 10:36:02,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-18 10:36:02,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1804 transitions. [2024-11-18 10:36:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-18 10:36:02,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:02,046 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:02,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:36:02,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:02,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:02,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1682054282, now seen corresponding path program 1 times [2024-11-18 10:36:02,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:02,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750866397] [2024-11-18 10:36:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:02,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 194 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-18 10:36:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750866397] [2024-11-18 10:36:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750866397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266885437] [2024-11-18 10:36:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:02,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:02,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:02,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:36:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:02,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:36:02,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-18 10:36:03,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:03,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266885437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:03,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:03,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-18 10:36:03,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216799283] [2024-11-18 10:36:03,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:03,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:03,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:03,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:03,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:36:03,196 INFO L87 Difference]: Start difference. First operand 1606 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:36:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:03,772 INFO L93 Difference]: Finished difference Result 3388 states and 3907 transitions. [2024-11-18 10:36:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:03,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2024-11-18 10:36:03,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:03,780 INFO L225 Difference]: With dead ends: 3388 [2024-11-18 10:36:03,780 INFO L226 Difference]: Without dead ends: 1962 [2024-11-18 10:36:03,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:36:03,785 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:03,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:36:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-18 10:36:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2024-11-18 10:36:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.122386537480877) internal successors, (2201), 1961 states have internal predecessors, (2201), 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) [2024-11-18 10:36:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2201 transitions. [2024-11-18 10:36:03,823 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2201 transitions. Word has length 337 [2024-11-18 10:36:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:03,824 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2201 transitions. [2024-11-18 10:36:03,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:36:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2201 transitions. [2024-11-18 10:36:03,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-18 10:36:03,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:03,829 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:03,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 10:36:04,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:04,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:04,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:04,031 INFO L85 PathProgramCache]: Analyzing trace with hash 514746580, now seen corresponding path program 1 times [2024-11-18 10:36:04,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596733750] [2024-11-18 10:36:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:04,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-18 10:36:04,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:04,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596733750] [2024-11-18 10:36:04,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596733750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:04,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:04,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661603092] [2024-11-18 10:36:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:04,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:04,416 INFO L87 Difference]: Start difference. First operand 1962 states and 2201 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-18 10:36:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:04,936 INFO L93 Difference]: Finished difference Result 4100 states and 4648 transitions. [2024-11-18 10:36:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:04,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) Word has length 341 [2024-11-18 10:36:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:04,947 INFO L225 Difference]: With dead ends: 4100 [2024-11-18 10:36:04,947 INFO L226 Difference]: Without dead ends: 2318 [2024-11-18 10:36:04,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:04,953 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:04,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:36:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-18 10:36:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2024-11-18 10:36:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1204143288735433) internal successors, (2596), 2317 states have internal predecessors, (2596), 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) [2024-11-18 10:36:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2596 transitions. [2024-11-18 10:36:04,996 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2596 transitions. Word has length 341 [2024-11-18 10:36:04,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:04,996 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2596 transitions. [2024-11-18 10:36:04,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-18 10:36:04,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2596 transitions. [2024-11-18 10:36:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-18 10:36:05,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:05,001 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-18 10:36:05,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:36:05,001 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:05,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:05,002 INFO L85 PathProgramCache]: Analyzing trace with hash -591060880, now seen corresponding path program 1 times [2024-11-18 10:36:05,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:05,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641559976] [2024-11-18 10:36:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:05,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-18 10:36:05,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641559976] [2024-11-18 10:36:05,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641559976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:05,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163208394] [2024-11-18 10:36:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:05,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:05,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:05,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 10:36:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:05,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:36:05,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-18 10:36:06,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:06,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163208394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:06,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:06,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-18 10:36:06,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230528867] [2024-11-18 10:36:06,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:06,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:06,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:06,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:06,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:36:06,006 INFO L87 Difference]: Start difference. First operand 2318 states and 2596 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-18 10:36:06,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:06,528 INFO L93 Difference]: Finished difference Result 2854 states and 3202 transitions. [2024-11-18 10:36:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:06,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) Word has length 368 [2024-11-18 10:36:06,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:06,537 INFO L225 Difference]: With dead ends: 2854 [2024-11-18 10:36:06,537 INFO L226 Difference]: Without dead ends: 2852 [2024-11-18 10:36:06,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:36:06,540 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 90 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:06,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 24 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:36:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2024-11-18 10:36:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2024-11-18 10:36:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1254509018036072) internal successors, (2808), 2495 states have internal predecessors, (2808), 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) [2024-11-18 10:36:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2808 transitions. [2024-11-18 10:36:06,615 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2808 transitions. Word has length 368 [2024-11-18 10:36:06,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:06,616 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2808 transitions. [2024-11-18 10:36:06,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-18 10:36:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2808 transitions. [2024-11-18 10:36:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-18 10:36:06,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:06,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:06,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 10:36:06,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-18 10:36:06,825 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:06,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:06,825 INFO L85 PathProgramCache]: Analyzing trace with hash 262542689, now seen corresponding path program 1 times [2024-11-18 10:36:06,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:06,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777092594] [2024-11-18 10:36:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:06,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-18 10:36:07,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777092594] [2024-11-18 10:36:07,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777092594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:07,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:07,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:07,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483878221] [2024-11-18 10:36:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:07,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:36:07,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:07,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:36:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:36:07,212 INFO L87 Difference]: Start difference. First operand 2496 states and 2808 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-11-18 10:36:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:07,887 INFO L93 Difference]: Finished difference Result 5048 states and 5689 transitions. [2024-11-18 10:36:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:36:07,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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) Word has length 421 [2024-11-18 10:36:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:07,897 INFO L225 Difference]: With dead ends: 5048 [2024-11-18 10:36:07,897 INFO L226 Difference]: Without dead ends: 2674 [2024-11-18 10:36:07,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:36:07,901 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 141 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:07,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:36:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-11-18 10:36:07,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2024-11-18 10:36:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0849699398797594) internal successors, (2707), 2495 states have internal predecessors, (2707), 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) [2024-11-18 10:36:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2707 transitions. [2024-11-18 10:36:07,943 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2707 transitions. Word has length 421 [2024-11-18 10:36:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:07,943 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2707 transitions. [2024-11-18 10:36:07,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-11-18 10:36:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2707 transitions. [2024-11-18 10:36:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-18 10:36:07,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:07,951 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:07,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:36:07,952 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:07,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1515068160, now seen corresponding path program 2 times [2024-11-18 10:36:07,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:07,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683001413] [2024-11-18 10:36:07,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 10:36:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:08,024 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 10:36:08,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 10:36:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 10:36:08,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:08,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683001413] [2024-11-18 10:36:08,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683001413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:08,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453138831] [2024-11-18 10:36:08,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 10:36:08,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:08,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:08,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:08,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 10:36:08,845 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 10:36:08,845 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 10:36:08,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 10:36:08,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:36:09,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453138831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:09,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:09,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-18 10:36:09,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18217042] [2024-11-18 10:36:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:09,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:36:09,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:09,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:36:09,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:36:09,462 INFO L87 Difference]: Start difference. First operand 2496 states and 2707 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-11-18 10:36:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:10,219 INFO L93 Difference]: Finished difference Result 5524 states and 6045 transitions. [2024-11-18 10:36:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:36:10,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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) Word has length 447 [2024-11-18 10:36:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:10,230 INFO L225 Difference]: With dead ends: 5524 [2024-11-18 10:36:10,230 INFO L226 Difference]: Without dead ends: 3208 [2024-11-18 10:36:10,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:36:10,234 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 265 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:10,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 14 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:36:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2024-11-18 10:36:10,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2024-11-18 10:36:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0771659066994037) internal successors, (3071), 2851 states have internal predecessors, (3071), 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) [2024-11-18 10:36:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3071 transitions. [2024-11-18 10:36:10,278 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3071 transitions. Word has length 447 [2024-11-18 10:36:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:10,279 INFO L471 AbstractCegarLoop]: Abstraction has 2852 states and 3071 transitions. [2024-11-18 10:36:10,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-11-18 10:36:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3071 transitions. [2024-11-18 10:36:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-18 10:36:10,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:10,286 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:10,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 10:36:10,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:10,487 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:10,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 284431623, now seen corresponding path program 1 times [2024-11-18 10:36:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:10,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777965679] [2024-11-18 10:36:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:10,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-18 10:36:10,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:10,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777965679] [2024-11-18 10:36:10,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777965679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:10,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:10,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:10,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117072814] [2024-11-18 10:36:10,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:10,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:10,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:10,969 INFO L87 Difference]: Start difference. First operand 2852 states and 3071 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2024-11-18 10:36:11,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:11,439 INFO L93 Difference]: Finished difference Result 6058 states and 6601 transitions. [2024-11-18 10:36:11,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:11,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) Word has length 454 [2024-11-18 10:36:11,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:11,449 INFO L225 Difference]: With dead ends: 6058 [2024-11-18 10:36:11,449 INFO L226 Difference]: Without dead ends: 3386 [2024-11-18 10:36:11,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:11,453 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 103 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:11,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 220 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:36:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-18 10:36:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2024-11-18 10:36:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.079513564078578) internal successors, (3462), 3207 states have internal predecessors, (3462), 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) [2024-11-18 10:36:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3462 transitions. [2024-11-18 10:36:11,499 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3462 transitions. Word has length 454 [2024-11-18 10:36:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:11,499 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3462 transitions. [2024-11-18 10:36:11,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2024-11-18 10:36:11,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3462 transitions. [2024-11-18 10:36:11,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-18 10:36:11,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:11,503 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:11,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:36:11,504 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:11,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1246091326, now seen corresponding path program 1 times [2024-11-18 10:36:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125557918] [2024-11-18 10:36:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:11,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 10:36:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125557918] [2024-11-18 10:36:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125557918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:12,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382719360] [2024-11-18 10:36:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:12,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:12,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:12,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:12,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 10:36:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:12,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:36:12,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-11-18 10:36:12,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:12,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382719360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:12,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:12,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-18 10:36:12,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419452901] [2024-11-18 10:36:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:12,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:12,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:12,531 INFO L87 Difference]: Start difference. First operand 3208 states and 3462 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-11-18 10:36:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:13,007 INFO L93 Difference]: Finished difference Result 3922 states and 4228 transitions. [2024-11-18 10:36:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:13,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) Word has length 499 [2024-11-18 10:36:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:13,020 INFO L225 Difference]: With dead ends: 3922 [2024-11-18 10:36:13,020 INFO L226 Difference]: Without dead ends: 3920 [2024-11-18 10:36:13,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:13,022 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 151 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:13,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:36:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-18 10:36:13,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3208. [2024-11-18 10:36:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.079513564078578) internal successors, (3462), 3207 states have internal predecessors, (3462), 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) [2024-11-18 10:36:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3462 transitions. [2024-11-18 10:36:13,073 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3462 transitions. Word has length 499 [2024-11-18 10:36:13,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:13,074 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3462 transitions. [2024-11-18 10:36:13,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-11-18 10:36:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3462 transitions. [2024-11-18 10:36:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 10:36:13,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:13,080 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:13,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 10:36:13,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:13,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:13,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 324332960, now seen corresponding path program 1 times [2024-11-18 10:36:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:13,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834722040] [2024-11-18 10:36:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 924 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-18 10:36:14,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:14,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834722040] [2024-11-18 10:36:14,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834722040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:14,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577522864] [2024-11-18 10:36:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:14,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:14,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:14,230 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:14,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 10:36:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:14,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:36:14,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2024-11-18 10:36:14,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:14,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577522864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:14,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:14,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-18 10:36:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464140495] [2024-11-18 10:36:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:14,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:14,517 INFO L87 Difference]: Start difference. First operand 3208 states and 3462 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2024-11-18 10:36:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:14,967 INFO L93 Difference]: Finished difference Result 7126 states and 7765 transitions. [2024-11-18 10:36:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:14,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) Word has length 641 [2024-11-18 10:36:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:14,979 INFO L225 Difference]: With dead ends: 7126 [2024-11-18 10:36:14,979 INFO L226 Difference]: Without dead ends: 4276 [2024-11-18 10:36:14,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:14,983 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:14,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 216 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:36:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2024-11-18 10:36:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2024-11-18 10:36:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.078105931169148) internal successors, (4417), 4097 states have internal predecessors, (4417), 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) [2024-11-18 10:36:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4417 transitions. [2024-11-18 10:36:15,045 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4417 transitions. Word has length 641 [2024-11-18 10:36:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:15,046 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4417 transitions. [2024-11-18 10:36:15,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2024-11-18 10:36:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4417 transitions. [2024-11-18 10:36:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-18 10:36:15,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:15,054 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:15,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 10:36:15,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-18 10:36:15,256 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:15,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash -316771125, now seen corresponding path program 1 times [2024-11-18 10:36:15,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260720989] [2024-11-18 10:36:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 1005 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-18 10:36:16,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260720989] [2024-11-18 10:36:16,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260720989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:36:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643795881] [2024-11-18 10:36:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:16,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:16,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:36:16,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:36:16,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 10:36:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:16,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 10:36:16,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:36:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2024-11-18 10:36:16,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:36:16,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643795881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:16,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:36:16,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-18 10:36:16,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194258507] [2024-11-18 10:36:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:16,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:16,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:16,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:16,783 INFO L87 Difference]: Start difference. First operand 4098 states and 4417 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 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) [2024-11-18 10:36:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:17,222 INFO L93 Difference]: Finished difference Result 8906 states and 9616 transitions. [2024-11-18 10:36:17,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:17,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 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) Word has length 671 [2024-11-18 10:36:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:17,236 INFO L225 Difference]: With dead ends: 8906 [2024-11-18 10:36:17,236 INFO L226 Difference]: Without dead ends: 5166 [2024-11-18 10:36:17,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 670 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:36:17,243 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:17,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:36:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-18 10:36:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2024-11-18 10:36:17,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0773051176851651) internal successors, (4989), 4631 states have internal predecessors, (4989), 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) [2024-11-18 10:36:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4989 transitions. [2024-11-18 10:36:17,309 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4989 transitions. Word has length 671 [2024-11-18 10:36:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:17,310 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 4989 transitions. [2024-11-18 10:36:17,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 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) [2024-11-18 10:36:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4989 transitions. [2024-11-18 10:36:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-18 10:36:17,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:17,319 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:17,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-18 10:36:17,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:36:17,520 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:17,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash -590297812, now seen corresponding path program 1 times [2024-11-18 10:36:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182263899] [2024-11-18 10:36:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-18 10:36:17,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182263899] [2024-11-18 10:36:17,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182263899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:17,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:17,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:17,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294095020] [2024-11-18 10:36:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:17,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:17,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:17,828 INFO L87 Difference]: Start difference. First operand 4632 states and 4989 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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) [2024-11-18 10:36:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:18,218 INFO L93 Difference]: Finished difference Result 9618 states and 10429 transitions. [2024-11-18 10:36:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:18,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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) Word has length 675 [2024-11-18 10:36:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:18,225 INFO L225 Difference]: With dead ends: 9618 [2024-11-18 10:36:18,226 INFO L226 Difference]: Without dead ends: 5344 [2024-11-18 10:36:18,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:18,230 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:18,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:36:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-18 10:36:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2024-11-18 10:36:18,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0733670222721317) internal successors, (5735), 5343 states have internal predecessors, (5735), 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) [2024-11-18 10:36:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5735 transitions. [2024-11-18 10:36:18,293 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5735 transitions. Word has length 675 [2024-11-18 10:36:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:18,294 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5735 transitions. [2024-11-18 10:36:18,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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) [2024-11-18 10:36:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5735 transitions. [2024-11-18 10:36:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-18 10:36:18,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:18,304 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:18,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 10:36:18,304 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:18,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1194627754, now seen corresponding path program 1 times [2024-11-18 10:36:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551829477] [2024-11-18 10:36:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1708 backedges. 1171 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-18 10:36:18,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:18,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551829477] [2024-11-18 10:36:18,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551829477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:18,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:18,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:18,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921233129] [2024-11-18 10:36:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:18,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:18,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:18,833 INFO L87 Difference]: Start difference. First operand 5344 states and 5735 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-11-18 10:36:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:19,250 INFO L93 Difference]: Finished difference Result 10508 states and 11289 transitions. [2024-11-18 10:36:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:19,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) Word has length 688 [2024-11-18 10:36:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:19,258 INFO L225 Difference]: With dead ends: 10508 [2024-11-18 10:36:19,259 INFO L226 Difference]: Without dead ends: 5344 [2024-11-18 10:36:19,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:19,265 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:19,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 244 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:36:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-18 10:36:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4632. [2024-11-18 10:36:19,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0796804145972791) internal successors, (5000), 4631 states have internal predecessors, (5000), 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) [2024-11-18 10:36:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 5000 transitions. [2024-11-18 10:36:19,313 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 5000 transitions. Word has length 688 [2024-11-18 10:36:19,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:19,313 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 5000 transitions. [2024-11-18 10:36:19,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-11-18 10:36:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 5000 transitions. [2024-11-18 10:36:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2024-11-18 10:36:19,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:19,322 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:19,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 10:36:19,323 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:19,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:19,324 INFO L85 PathProgramCache]: Analyzing trace with hash 569441928, now seen corresponding path program 1 times [2024-11-18 10:36:19,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:19,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966131443] [2024-11-18 10:36:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:19,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:36:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 1618 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-18 10:36:19,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:36:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966131443] [2024-11-18 10:36:19,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966131443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:36:19,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:36:19,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:36:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931844740] [2024-11-18 10:36:19,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:36:19,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:36:19,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:36:19,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:36:19,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:19,725 INFO L87 Difference]: Start difference. First operand 4632 states and 5000 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2024-11-18 10:36:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:36:20,078 INFO L93 Difference]: Finished difference Result 9260 states and 9999 transitions. [2024-11-18 10:36:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:36:20,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) Word has length 772 [2024-11-18 10:36:20,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:36:20,080 INFO L225 Difference]: With dead ends: 9260 [2024-11-18 10:36:20,080 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 10:36:20,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:36:20,086 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 102 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:36:20,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 240 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 10:36:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 10:36:20,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 10:36:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-18 10:36:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 10:36:20,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 772 [2024-11-18 10:36:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:20,088 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 10:36:20,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2024-11-18 10:36:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 10:36:20,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 10:36:20,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 10:36:20,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 10:36:20,094 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:36:20,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 10:36:20,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 10:36:20,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:36:20 BoogieIcfgContainer [2024-11-18 10:36:20,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 10:36:20,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 10:36:20,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 10:36:20,619 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 10:36:20,620 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:35:57" (3/4) ... [2024-11-18 10:36:20,622 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 10:36:20,641 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 10:36:20,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 10:36:20,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 10:36:20,648 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 10:36:20,814 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 10:36:20,814 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 10:36:20,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 10:36:20,815 INFO L158 Benchmark]: Toolchain (without parser) took 25986.74ms. Allocated memory was 172.0MB in the beginning and 673.2MB in the end (delta: 501.2MB). Free memory was 100.2MB in the beginning and 578.8MB in the end (delta: -478.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,815 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 10:36:20,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.38ms. Allocated memory is still 172.0MB. Free memory was 100.0MB in the beginning and 122.0MB in the end (delta: -22.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.16ms. Allocated memory is still 172.0MB. Free memory was 122.0MB in the beginning and 112.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,817 INFO L158 Benchmark]: Boogie Preprocessor took 129.80ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 99.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,817 INFO L158 Benchmark]: RCFGBuilder took 1319.67ms. Allocated memory is still 172.0MB. Free memory was 99.1MB in the beginning and 71.0MB in the end (delta: 28.0MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,818 INFO L158 Benchmark]: TraceAbstraction took 23586.37ms. Allocated memory was 172.0MB in the beginning and 673.2MB in the end (delta: 501.2MB). Free memory was 70.1MB in the beginning and 593.5MB in the end (delta: -523.4MB). Peak memory consumption was 338.4MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,818 INFO L158 Benchmark]: Witness Printer took 195.60ms. Allocated memory is still 673.2MB. Free memory was 593.5MB in the beginning and 578.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 10:36:20,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.38ms. Allocated memory is still 172.0MB. Free memory was 100.0MB in the beginning and 122.0MB in the end (delta: -22.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.16ms. Allocated memory is still 172.0MB. Free memory was 122.0MB in the beginning and 112.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.80ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 99.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1319.67ms. Allocated memory is still 172.0MB. Free memory was 99.1MB in the beginning and 71.0MB in the end (delta: 28.0MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * TraceAbstraction took 23586.37ms. Allocated memory was 172.0MB in the beginning and 673.2MB in the end (delta: 501.2MB). Free memory was 70.1MB in the beginning and 593.5MB in the end (delta: -523.4MB). Peak memory consumption was 338.4MB. Max. memory is 16.1GB. * Witness Printer took 195.60ms. Allocated memory is still 673.2MB. Free memory was 593.5MB in the beginning and 578.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 167]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 16, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2130 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2130 mSDsluCounter, 1645 SdHoareTripleChecker+Invalid, 7.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 974 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 9295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 974 mSolverCounterUnsat, 1557 mSDtfsCounter, 8321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3013 GetRequests, 2971 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5344occurred in iteration=14, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 3210 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 9794 NumberOfCodeBlocks, 9794 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 9772 ConstructedInterpolants, 0 QuantifiedInterpolants, 32279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3765 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 16272/17330 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 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((6 <= a15) && (a24 == 1)) || ((a24 == 1) && (0 <= ((long long) a12 + 42)))) || (((a15 <= 8) && (a21 <= 7)) && (((long long) 49 + a12) <= 0))) || ((a24 == 1) && (a21 == 9))) || ((a24 == 1) && (a21 <= 7))) RESULT: Ultimate proved your program to be correct! [2024-11-18 10:36:20,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE