./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label02.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/Problem01_label02.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 c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 09:36:37,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 09:36:37,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 09:36:37,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 09:36:37,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 09:36:37,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 09:36:37,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 09:36:37,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 09:36:37,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 09:36:37,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 09:36:37,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 09:36:37,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 09:36:37,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 09:36:37,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 09:36:37,624 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 09:36:37,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 09:36:37,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 09:36:37,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 09:36:37,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 09:36:37,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 09:36:37,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 09:36:37,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 09:36:37,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 09:36:37,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 09:36:37,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 09:36:37,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 09:36:37,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 09:36:37,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 09:36:37,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 09:36:37,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 09:36:37,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 09:36:37,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 09:36:37,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 09:36:37,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 09:36:37,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 09:36:37,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 09:36:37,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 09:36:37,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 09:36:37,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 09:36:37,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 09:36:37,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 09:36:37,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 09:36:37,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 [2024-11-18 09:36:37,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 09:36:37,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 09:36:37,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 09:36:37,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 09:36:37,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 09:36:37,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2024-11-18 09:36:39,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 09:36:39,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 09:36:39,738 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2024-11-18 09:36:39,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f179126f/fde97c69f3404e29bc3613433daebc73/FLAG7de08ab77 [2024-11-18 09:36:39,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f179126f/fde97c69f3404e29bc3613433daebc73 [2024-11-18 09:36:39,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 09:36:39,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 09:36:39,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 09:36:39,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 09:36:39,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 09:36:39,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:36:39" (1/1) ... [2024-11-18 09:36:39,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b1d789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:39, skipping insertion in model container [2024-11-18 09:36:39,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:36:39" (1/1) ... [2024-11-18 09:36:39,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 09:36:40,148 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/Problem01_label02.c[16747,16760] [2024-11-18 09:36:40,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 09:36:40,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 09:36:40,314 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/Problem01_label02.c[16747,16760] [2024-11-18 09:36:40,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 09:36:40,351 INFO L204 MainTranslator]: Completed translation [2024-11-18 09:36:40,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40 WrapperNode [2024-11-18 09:36:40,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 09:36:40,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 09:36:40,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 09:36:40,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 09:36:40,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,445 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2024-11-18 09:36:40,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 09:36:40,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 09:36:40,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 09:36:40,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 09:36:40,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,508 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 09:36:40,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 09:36:40,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 09:36:40,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 09:36:40,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 09:36:40,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (1/1) ... [2024-11-18 09:36:40,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 09:36:40,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:40,604 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 09:36:40,611 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 09:36:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 09:36:40,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 09:36:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 09:36:40,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 09:36:40,737 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 09:36:40,739 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 09:36:41,805 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-18 09:36:41,805 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 09:36:41,827 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 09:36:41,827 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 09:36:41,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:41 BoogieIcfgContainer [2024-11-18 09:36:41,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 09:36:41,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 09:36:41,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 09:36:41,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 09:36:41,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:36:39" (1/3) ... [2024-11-18 09:36:41,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3cd4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:36:41, skipping insertion in model container [2024-11-18 09:36:41,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:36:40" (2/3) ... [2024-11-18 09:36:41,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3cd4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:36:41, skipping insertion in model container [2024-11-18 09:36:41,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:41" (3/3) ... [2024-11-18 09:36:41,836 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label02.c [2024-11-18 09:36:41,853 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 09:36:41,853 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 09:36:41,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 09:36:41,935 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;@3d5af9bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 09:36:41,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 09:36:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 09:36:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 09:36:41,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:41,952 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, 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 09:36:41,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:41,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash -776841673, now seen corresponding path program 1 times [2024-11-18 09:36:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:41,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678021518] [2024-11-18 09:36:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:41,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:42,499 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 09:36:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678021518] [2024-11-18 09:36:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678021518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:42,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:42,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:42,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577391804] [2024-11-18 09:36:42,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:42,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:42,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:42,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:42,540 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 09:36:43,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:43,220 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2024-11-18 09:36:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:43,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 90 [2024-11-18 09:36:43,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:43,233 INFO L225 Difference]: With dead ends: 528 [2024-11-18 09:36:43,233 INFO L226 Difference]: Without dead ends: 266 [2024-11-18 09:36:43,237 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 09:36:43,241 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 98 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:43,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-18 09:36:43,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-18 09:36:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 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 09:36:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2024-11-18 09:36:43,310 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 90 [2024-11-18 09:36:43,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:43,311 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2024-11-18 09:36:43,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 09:36:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2024-11-18 09:36:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 09:36:43,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:43,318 INFO L215 NwaCegarLoop]: trace histogram [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, 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 09:36:43,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 09:36:43,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:43,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:43,319 INFO L85 PathProgramCache]: Analyzing trace with hash 904352266, now seen corresponding path program 1 times [2024-11-18 09:36:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:43,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45943792] [2024-11-18 09:36:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:43,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:43,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:43,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45943792] [2024-11-18 09:36:43,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45943792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:43,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857808932] [2024-11-18 09:36:43,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:43,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:43,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:43,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:43,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:43,475 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 09:36:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:43,910 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2024-11-18 09:36:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2024-11-18 09:36:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:43,913 INFO L225 Difference]: With dead ends: 792 [2024-11-18 09:36:43,914 INFO L226 Difference]: Without dead ends: 528 [2024-11-18 09:36:43,915 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 09:36:43,916 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:43,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-18 09:36:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-18 09:36:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3795066413662238) internal successors, (727), 527 states have internal predecessors, (727), 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 09:36:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2024-11-18 09:36:43,949 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 96 [2024-11-18 09:36:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:43,949 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2024-11-18 09:36:43,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 09:36:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2024-11-18 09:36:43,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-18 09:36:43,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:43,952 INFO L215 NwaCegarLoop]: trace histogram [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, 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 09:36:43,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 09:36:43,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:43,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1983827210, now seen corresponding path program 1 times [2024-11-18 09:36:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696039180] [2024-11-18 09:36:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 09:36:44,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:44,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696039180] [2024-11-18 09:36:44,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696039180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:44,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:44,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:44,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871363944] [2024-11-18 09:36:44,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:44,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:44,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:44,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:44,111 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 09:36:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:44,516 INFO L93 Difference]: Finished difference Result 1578 states and 2176 transitions. [2024-11-18 09:36:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:44,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 97 [2024-11-18 09:36:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:44,520 INFO L225 Difference]: With dead ends: 1578 [2024-11-18 09:36:44,521 INFO L226 Difference]: Without dead ends: 1052 [2024-11-18 09:36:44,522 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 09:36:44,523 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:44,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 31 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-18 09:36:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 659. [2024-11-18 09:36:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3768996960486322) internal successors, (906), 658 states have internal predecessors, (906), 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 09:36:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 906 transitions. [2024-11-18 09:36:44,551 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 906 transitions. Word has length 97 [2024-11-18 09:36:44,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:44,551 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 906 transitions. [2024-11-18 09:36:44,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 09:36:44,552 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 906 transitions. [2024-11-18 09:36:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 09:36:44,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:44,557 INFO L215 NwaCegarLoop]: trace histogram [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, 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 09:36:44,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 09:36:44,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:44,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:44,558 INFO L85 PathProgramCache]: Analyzing trace with hash -963864069, now seen corresponding path program 1 times [2024-11-18 09:36:44,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:44,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299256386] [2024-11-18 09:36:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:44,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:44,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:44,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299256386] [2024-11-18 09:36:44,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299256386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:44,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:44,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:44,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174806711] [2024-11-18 09:36:44,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:44,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:44,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:44,800 INFO L87 Difference]: Start difference. First operand 659 states and 906 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 09:36:45,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:45,236 INFO L93 Difference]: Finished difference Result 1578 states and 2156 transitions. [2024-11-18 09:36:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:45,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 103 [2024-11-18 09:36:45,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:45,240 INFO L225 Difference]: With dead ends: 1578 [2024-11-18 09:36:45,240 INFO L226 Difference]: Without dead ends: 921 [2024-11-18 09:36:45,241 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 09:36:45,242 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 134 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:45,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-18 09:36:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2024-11-18 09:36:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.308695652173913) internal successors, (1204), 920 states have internal predecessors, (1204), 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 09:36:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1204 transitions. [2024-11-18 09:36:45,266 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1204 transitions. Word has length 103 [2024-11-18 09:36:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:45,266 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1204 transitions. [2024-11-18 09:36:45,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 09:36:45,267 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1204 transitions. [2024-11-18 09:36:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 09:36:45,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:45,273 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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, 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 09:36:45,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 09:36:45,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:45,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:45,274 INFO L85 PathProgramCache]: Analyzing trace with hash -887722715, now seen corresponding path program 1 times [2024-11-18 09:36:45,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:45,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140746014] [2024-11-18 09:36:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:45,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 09:36:45,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:45,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140746014] [2024-11-18 09:36:45,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140746014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:45,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:45,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103223575] [2024-11-18 09:36:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:45,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:45,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:45,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:45,412 INFO L87 Difference]: Start difference. First operand 921 states and 1204 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 09:36:45,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:45,851 INFO L93 Difference]: Finished difference Result 2364 states and 3056 transitions. [2024-11-18 09:36:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:45,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 116 [2024-11-18 09:36:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:45,856 INFO L225 Difference]: With dead ends: 2364 [2024-11-18 09:36:45,856 INFO L226 Difference]: Without dead ends: 1445 [2024-11-18 09:36:45,857 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 09:36:45,858 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:45,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 47 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-18 09:36:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183. [2024-11-18 09:36:45,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2859560067681894) internal successors, (1520), 1182 states have internal predecessors, (1520), 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 09:36:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1520 transitions. [2024-11-18 09:36:45,884 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1520 transitions. Word has length 116 [2024-11-18 09:36:45,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:45,885 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1520 transitions. [2024-11-18 09:36:45,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 09:36:45,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1520 transitions. [2024-11-18 09:36:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 09:36:45,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:45,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 09:36:45,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2095190628, now seen corresponding path program 1 times [2024-11-18 09:36:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:45,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401476847] [2024-11-18 09:36:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:45,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 09:36:46,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:46,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401476847] [2024-11-18 09:36:46,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401476847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:46,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:46,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 09:36:46,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454434387] [2024-11-18 09:36:46,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:46,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:46,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:46,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:46,066 INFO L87 Difference]: Start difference. First operand 1183 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 09:36:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:46,442 INFO L93 Difference]: Finished difference Result 2495 states and 3205 transitions. [2024-11-18 09:36:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:46,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 118 [2024-11-18 09:36:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:46,447 INFO L225 Difference]: With dead ends: 2495 [2024-11-18 09:36:46,448 INFO L226 Difference]: Without dead ends: 1314 [2024-11-18 09:36:46,450 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 09:36:46,452 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:46,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 74 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-18 09:36:46,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2024-11-18 09:36:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2711348057882712) internal successors, (1669), 1313 states have internal predecessors, (1669), 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 09:36:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1669 transitions. [2024-11-18 09:36:46,481 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1669 transitions. Word has length 118 [2024-11-18 09:36:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:46,483 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1669 transitions. [2024-11-18 09:36:46,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 09:36:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1669 transitions. [2024-11-18 09:36:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 09:36:46,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:46,488 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:46,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 09:36:46,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:46,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:46,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1811589588, now seen corresponding path program 1 times [2024-11-18 09:36:46,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:46,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029121434] [2024-11-18 09:36:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:46,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 09:36:46,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029121434] [2024-11-18 09:36:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029121434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:46,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:46,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207427559] [2024-11-18 09:36:46,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:46,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 09:36:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:46,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 09:36:46,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 09:36:46,739 INFO L87 Difference]: Start difference. First operand 1314 states and 1669 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 09:36:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:47,331 INFO L93 Difference]: Finished difference Result 3019 states and 3777 transitions. [2024-11-18 09:36:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 09:36:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 122 [2024-11-18 09:36:47,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:47,337 INFO L225 Difference]: With dead ends: 3019 [2024-11-18 09:36:47,337 INFO L226 Difference]: Without dead ends: 1707 [2024-11-18 09:36:47,339 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 09:36:47,339 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 258 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:47,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 72 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-18 09:36:47,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2024-11-18 09:36:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.2412698412698413) internal successors, (1955), 1575 states have internal predecessors, (1955), 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 09:36:47,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1955 transitions. [2024-11-18 09:36:47,368 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1955 transitions. Word has length 122 [2024-11-18 09:36:47,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:47,368 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1955 transitions. [2024-11-18 09:36:47,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 09:36:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1955 transitions. [2024-11-18 09:36:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 09:36:47,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:47,371 INFO L215 NwaCegarLoop]: trace histogram [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, 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 09:36:47,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 09:36:47,371 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:47,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash 650221427, now seen corresponding path program 1 times [2024-11-18 09:36:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:47,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170964213] [2024-11-18 09:36:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:47,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:47,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170964213] [2024-11-18 09:36:47,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170964213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:47,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:47,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:47,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432886286] [2024-11-18 09:36:47,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:47,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 09:36:47,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:47,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 09:36:47,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 09:36:47,563 INFO L87 Difference]: Start difference. First operand 1576 states and 1955 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:48,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:48,218 INFO L93 Difference]: Finished difference Result 3543 states and 4386 transitions. [2024-11-18 09:36:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 09:36:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2024-11-18 09:36:48,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:48,226 INFO L225 Difference]: With dead ends: 3543 [2024-11-18 09:36:48,226 INFO L226 Difference]: Without dead ends: 1969 [2024-11-18 09:36:48,228 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 09:36:48,229 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 226 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:48,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 71 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 09:36:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-18 09:36:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2024-11-18 09:36:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.2231899836690256) internal successors, (2247), 1837 states have internal predecessors, (2247), 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 09:36:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2247 transitions. [2024-11-18 09:36:48,266 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2247 transitions. Word has length 140 [2024-11-18 09:36:48,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:48,266 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2247 transitions. [2024-11-18 09:36:48,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2247 transitions. [2024-11-18 09:36:48,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 09:36:48,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:48,270 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, 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] [2024-11-18 09:36:48,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 09:36:48,270 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:48,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1080914101, now seen corresponding path program 1 times [2024-11-18 09:36:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:48,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097948461] [2024-11-18 09:36:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 09:36:48,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:48,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097948461] [2024-11-18 09:36:48,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097948461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:48,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684599654] [2024-11-18 09:36:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:48,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:48,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:48,634 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 09:36:48,636 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 09:36:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:48,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:48,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-18 09:36:48,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:48,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684599654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:48,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:48,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-18 09:36:48,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507163962] [2024-11-18 09:36:48,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:48,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:48,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:48,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:48,974 INFO L87 Difference]: Start difference. First operand 1838 states and 2247 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 09:36:49,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:49,383 INFO L93 Difference]: Finished difference Result 4853 states and 5918 transitions. [2024-11-18 09:36:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:49,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 156 [2024-11-18 09:36:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:49,394 INFO L225 Difference]: With dead ends: 4853 [2024-11-18 09:36:49,394 INFO L226 Difference]: Without dead ends: 3017 [2024-11-18 09:36:49,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:49,398 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 64 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:49,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 31 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2024-11-18 09:36:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3017. [2024-11-18 09:36:49,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.1996021220159152) internal successors, (3618), 3016 states have internal predecessors, (3618), 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 09:36:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3618 transitions. [2024-11-18 09:36:49,487 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3618 transitions. Word has length 156 [2024-11-18 09:36:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:49,488 INFO L471 AbstractCegarLoop]: Abstraction has 3017 states and 3618 transitions. [2024-11-18 09:36:49,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 09:36:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3618 transitions. [2024-11-18 09:36:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 09:36:49,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:49,494 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-18 09:36:49,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 09:36:49,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:49,695 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:49,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:49,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1621263710, now seen corresponding path program 1 times [2024-11-18 09:36:49,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:49,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841480455] [2024-11-18 09:36:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:49,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-18 09:36:49,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:49,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841480455] [2024-11-18 09:36:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841480455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972624166] [2024-11-18 09:36:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:49,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:49,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:49,816 INFO L87 Difference]: Start difference. First operand 3017 states and 3618 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 09:36:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:50,248 INFO L93 Difference]: Finished difference Result 6687 states and 8052 transitions. [2024-11-18 09:36:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 163 [2024-11-18 09:36:50,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:50,261 INFO L225 Difference]: With dead ends: 6687 [2024-11-18 09:36:50,261 INFO L226 Difference]: Without dead ends: 3279 [2024-11-18 09:36:50,266 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 09:36:50,267 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:50,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 198 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-18 09:36:50,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3017. [2024-11-18 09:36:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 1.1226790450928381) internal successors, (3386), 3016 states have internal predecessors, (3386), 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 09:36:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3386 transitions. [2024-11-18 09:36:50,325 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3386 transitions. Word has length 163 [2024-11-18 09:36:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:50,325 INFO L471 AbstractCegarLoop]: Abstraction has 3017 states and 3386 transitions. [2024-11-18 09:36:50,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 09:36:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3386 transitions. [2024-11-18 09:36:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-18 09:36:50,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:50,331 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 09:36:50,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 09:36:50,331 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:50,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1100002021, now seen corresponding path program 1 times [2024-11-18 09:36:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:50,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436950323] [2024-11-18 09:36:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 101 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-18 09:36:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436950323] [2024-11-18 09:36:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436950323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142628297] [2024-11-18 09:36:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:50,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:50,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:50,609 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 09:36:50,611 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 09:36:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:50,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:50,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-18 09:36:50,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142628297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:50,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:50,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 09:36:50,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689898090] [2024-11-18 09:36:50,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:50,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:50,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:50,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:50,874 INFO L87 Difference]: Start difference. First operand 3017 states and 3386 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:51,268 INFO L93 Difference]: Finished difference Result 6294 states and 7075 transitions. [2024-11-18 09:36:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 172 [2024-11-18 09:36:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:51,279 INFO L225 Difference]: With dead ends: 6294 [2024-11-18 09:36:51,280 INFO L226 Difference]: Without dead ends: 3279 [2024-11-18 09:36:51,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 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 09:36:51,284 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:51,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 163 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-18 09:36:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2024-11-18 09:36:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.0978709882427709) internal successors, (3455), 3147 states have internal predecessors, (3455), 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 09:36:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3455 transitions. [2024-11-18 09:36:51,339 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3455 transitions. Word has length 172 [2024-11-18 09:36:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:51,340 INFO L471 AbstractCegarLoop]: Abstraction has 3148 states and 3455 transitions. [2024-11-18 09:36:51,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3455 transitions. [2024-11-18 09:36:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 09:36:51,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:51,345 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 09:36:51,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 09:36:51,545 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,SelfDestructingSolverStorable10 [2024-11-18 09:36:51,546 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:51,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:51,546 INFO L85 PathProgramCache]: Analyzing trace with hash 763553243, now seen corresponding path program 1 times [2024-11-18 09:36:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:51,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337397407] [2024-11-18 09:36:51,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 105 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 09:36:51,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:51,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337397407] [2024-11-18 09:36:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337397407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:51,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16144242] [2024-11-18 09:36:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:51,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:51,816 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 09:36:51,817 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 09:36:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:51,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:51,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 09:36:52,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:52,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16144242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:52,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 09:36:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648046813] [2024-11-18 09:36:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:52,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:52,070 INFO L87 Difference]: Start difference. First operand 3148 states and 3455 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:52,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:52,401 INFO L93 Difference]: Finished difference Result 3674 states and 4048 transitions. [2024-11-18 09:36:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:52,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 176 [2024-11-18 09:36:52,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:52,413 INFO L225 Difference]: With dead ends: 3674 [2024-11-18 09:36:52,413 INFO L226 Difference]: Without dead ends: 3672 [2024-11-18 09:36:52,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:52,416 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:52,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 177 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 09:36:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2024-11-18 09:36:52,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3541. [2024-11-18 09:36:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.1) internal successors, (3894), 3540 states have internal predecessors, (3894), 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 09:36:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3894 transitions. [2024-11-18 09:36:52,484 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3894 transitions. Word has length 176 [2024-11-18 09:36:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:52,484 INFO L471 AbstractCegarLoop]: Abstraction has 3541 states and 3894 transitions. [2024-11-18 09:36:52,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:36:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3894 transitions. [2024-11-18 09:36:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-18 09:36:52,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:52,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:52,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 09:36:52,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:52,693 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:52,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash 884932255, now seen corresponding path program 1 times [2024-11-18 09:36:52,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:52,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002624648] [2024-11-18 09:36:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:52,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-18 09:36:52,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:52,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002624648] [2024-11-18 09:36:52,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002624648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:52,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 09:36:52,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 09:36:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153149381] [2024-11-18 09:36:52,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:52,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:52,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 09:36:52,844 INFO L87 Difference]: Start difference. First operand 3541 states and 3894 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 09:36:53,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:53,186 INFO L93 Difference]: Finished difference Result 7080 states and 7786 transitions. [2024-11-18 09:36:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 195 [2024-11-18 09:36:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:53,197 INFO L225 Difference]: With dead ends: 7080 [2024-11-18 09:36:53,198 INFO L226 Difference]: Without dead ends: 3541 [2024-11-18 09:36:53,201 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 09:36:53,202 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 129 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:53,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 30 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 09:36:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2024-11-18 09:36:53,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3541. [2024-11-18 09:36:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.0901129943502825) internal successors, (3859), 3540 states have internal predecessors, (3859), 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 09:36:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3859 transitions. [2024-11-18 09:36:53,252 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3859 transitions. Word has length 195 [2024-11-18 09:36:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:53,252 INFO L471 AbstractCegarLoop]: Abstraction has 3541 states and 3859 transitions. [2024-11-18 09:36:53,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 09:36:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3859 transitions. [2024-11-18 09:36:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-18 09:36:53,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:53,260 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 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, 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] [2024-11-18 09:36:53,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 09:36:53,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:53,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1726679257, now seen corresponding path program 1 times [2024-11-18 09:36:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:53,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968418848] [2024-11-18 09:36:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:53,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 223 proven. 11 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-18 09:36:53,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:53,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968418848] [2024-11-18 09:36:53,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968418848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:53,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397578937] [2024-11-18 09:36:53,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:53,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:53,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:53,735 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 09:36:53,737 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 09:36:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:53,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:53,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-18 09:36:53,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:53,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397578937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:53,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:53,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 09:36:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482022713] [2024-11-18 09:36:53,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:53,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:53,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:53,944 INFO L87 Difference]: Start difference. First operand 3541 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 09:36:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:54,355 INFO L93 Difference]: Finished difference Result 7342 states and 8002 transitions. [2024-11-18 09:36:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 260 [2024-11-18 09:36:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:54,372 INFO L225 Difference]: With dead ends: 7342 [2024-11-18 09:36:54,376 INFO L226 Difference]: Without dead ends: 3672 [2024-11-18 09:36:54,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:54,382 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:54,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 175 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2024-11-18 09:36:54,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3541. [2024-11-18 09:36:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.0768361581920904) internal successors, (3812), 3540 states have internal predecessors, (3812), 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 09:36:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3812 transitions. [2024-11-18 09:36:54,466 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3812 transitions. Word has length 260 [2024-11-18 09:36:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:54,467 INFO L471 AbstractCegarLoop]: Abstraction has 3541 states and 3812 transitions. [2024-11-18 09:36:54,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 09:36:54,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3812 transitions. [2024-11-18 09:36:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-18 09:36:54,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 09:36:54,477 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2024-11-18 09:36:54,494 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 09:36:54,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:54,681 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 09:36:54,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 09:36:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1381679681, now seen corresponding path program 1 times [2024-11-18 09:36:54,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 09:36:54,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572805413] [2024-11-18 09:36:54,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:54,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 09:36:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 228 proven. 11 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-18 09:36:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 09:36:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572805413] [2024-11-18 09:36:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572805413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 09:36:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318827102] [2024-11-18 09:36:55,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 09:36:55,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 09:36:55,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 09:36:55,118 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 09:36:55,120 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 09:36:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 09:36:55,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 09:36:55,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 09:36:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-18 09:36:55,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 09:36:55,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318827102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 09:36:55,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 09:36:55,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-18 09:36:55,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961818313] [2024-11-18 09:36:55,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 09:36:55,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 09:36:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 09:36:55,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 09:36:55,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:55,342 INFO L87 Difference]: Start difference. First operand 3541 states and 3812 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 09:36:55,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 09:36:55,758 INFO L93 Difference]: Finished difference Result 7078 states and 7616 transitions. [2024-11-18 09:36:55,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 09:36:55,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 265 [2024-11-18 09:36:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 09:36:55,760 INFO L225 Difference]: With dead ends: 7078 [2024-11-18 09:36:55,760 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 09:36:55,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 09:36:55,768 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 09:36:55,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 179 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 09:36:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 09:36:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 09:36:55,769 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 09:36:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 09:36:55,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 265 [2024-11-18 09:36:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 09:36:55,770 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 09:36:55,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 09:36:55,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 09:36:55,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 09:36:55,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 09:36:55,799 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 09:36:55,975 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,SelfDestructingSolverStorable14 [2024-11-18 09:36:55,978 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 09:36:55,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 09:36:56,420 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 09:36:56,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:36:56 BoogieIcfgContainer [2024-11-18 09:36:56,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 09:36:56,448 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 09:36:56,448 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 09:36:56,448 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 09:36:56,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:36:41" (3/4) ... [2024-11-18 09:36:56,452 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 09:36:56,466 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 09:36:56,467 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 09:36:56,467 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 09:36:56,468 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 09:36:56,631 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 09:36:56,632 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 09:36:56,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 09:36:56,632 INFO L158 Benchmark]: Toolchain (without parser) took 16854.94ms. Allocated memory was 186.6MB in the beginning and 390.1MB in the end (delta: 203.4MB). Free memory was 114.5MB in the beginning and 337.8MB in the end (delta: -223.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 09:36:56,633 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 09:36:56,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.46ms. Allocated memory is still 186.6MB. Free memory was 114.5MB in the beginning and 84.6MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.95ms. Allocated memory is still 186.6MB. Free memory was 84.6MB in the beginning and 78.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,634 INFO L158 Benchmark]: Boogie Preprocessor took 126.27ms. Allocated memory is still 186.6MB. Free memory was 78.9MB in the beginning and 73.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,634 INFO L158 Benchmark]: RCFGBuilder took 1253.89ms. Allocated memory is still 186.6MB. Free memory was 73.7MB in the beginning and 86.2MB in the end (delta: -12.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,634 INFO L158 Benchmark]: TraceAbstraction took 14617.54ms. Allocated memory was 186.6MB in the beginning and 390.1MB in the end (delta: 203.4MB). Free memory was 85.2MB in the beginning and 350.4MB in the end (delta: -265.2MB). Peak memory consumption was 170.9MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,634 INFO L158 Benchmark]: Witness Printer took 183.82ms. Allocated memory is still 390.1MB. Free memory was 350.4MB in the beginning and 337.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 09:36:56,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.46ms. Allocated memory is still 186.6MB. Free memory was 114.5MB in the beginning and 84.6MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.95ms. Allocated memory is still 186.6MB. Free memory was 84.6MB in the beginning and 78.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.27ms. Allocated memory is still 186.6MB. Free memory was 78.9MB in the beginning and 73.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1253.89ms. Allocated memory is still 186.6MB. Free memory was 73.7MB in the beginning and 86.2MB in the end (delta: -12.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14617.54ms. Allocated memory was 186.6MB in the beginning and 390.1MB in the end (delta: 203.4MB). Free memory was 85.2MB in the beginning and 350.4MB in the end (delta: -265.2MB). Peak memory consumption was 170.9MB. Max. memory is 16.1GB. * Witness Printer took 183.82ms. Allocated memory is still 390.1MB. Free memory was 350.4MB in the beginning and 337.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 456]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 15, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1789 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1789 mSDsluCounter, 1390 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 760 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5495 IncrementalHoareTripleChecker+Invalid, 6255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 760 mSolverCounterUnsat, 1299 mSDtfsCounter, 5495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1069 GetRequests, 1042 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3541occurred in iteration=12, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3298 NumberOfCodeBlocks, 3298 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3278 ConstructedInterpolants, 0 QuantifiedInterpolants, 6889 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2054 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 2992/3065 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: 593]: Loop Invariant Derived loop invariant: ((((((((((((4 < a16) && (14 <= a8)) && (a20 == 1)) || (((a21 == 1) && (a17 == 1)) && (a20 == 1))) || ((a20 <= 0) && (a16 <= 4))) || (((a21 <= 0) && (a17 == 1)) && (a20 == 1))) || ((a20 <= 0) && (14 <= a8))) || (((a17 == 1) && (a16 <= 4)) && (a20 == 1))) || ((6 <= a16) && (a20 == 1))) || ((a7 <= 0) && (a20 == 1))) || (((a8 <= 13) && (a21 <= 0)) && (a16 <= 4))) || (((a7 != 1) && (14 <= a8)) && (a20 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-18 09:36:56,661 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