./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash a731438db71f82e2adf76abf6f6ed0c7b576d30ada2bff6bf38da81a3737cf27 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 05:48:42,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 05:48:42,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 05:48:42,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 05:48:42,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 05:48:42,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 05:48:42,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 05:48:42,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 05:48:42,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 05:48:42,840 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 05:48:42,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 05:48:42,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 05:48:42,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 05:48:42,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 05:48:42,843 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 05:48:42,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 05:48:42,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 05:48:42,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 05:48:42,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 05:48:42,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 05:48:42,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 05:48:42,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 05:48:42,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 05:48:42,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 05:48:42,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 05:48:42,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 05:48:42,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 05:48:42,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 05:48:42,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 05:48:42,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:48:42,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 05:48:42,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 05:48:42,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 05:48:42,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 05:48:42,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 05:48:42,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 05:48:42,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 05:48:42,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 05:48:42,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 05:48:42,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a731438db71f82e2adf76abf6f6ed0c7b576d30ada2bff6bf38da81a3737cf27 [2024-11-22 05:48:43,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 05:48:43,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 05:48:43,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 05:48:43,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 05:48:43,183 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 05:48:43,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c [2024-11-22 05:48:44,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 05:48:44,947 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 05:48:44,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c [2024-11-22 05:48:44,970 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe457318/ae9766edf4674904ac15aea6de25dc19/FLAGd45681b39 [2024-11-22 05:48:44,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe457318/ae9766edf4674904ac15aea6de25dc19 [2024-11-22 05:48:44,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 05:48:44,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 05:48:44,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 05:48:44,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 05:48:45,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 05:48:45,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:44" (1/1) ... [2024-11-22 05:48:45,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4e5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45, skipping insertion in model container [2024-11-22 05:48:45,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:44" (1/1) ... [2024-11-22 05:48:45,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 05:48:45,260 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/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c[1177,1190] [2024-11-22 05:48:45,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:48:45,622 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 05:48:45,632 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/hardware-verification-bv/btor2c-lazyMod.resistance.1.prop1-func-interl.c[1177,1190] [2024-11-22 05:48:45,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:48:45,854 INFO L204 MainTranslator]: Completed translation [2024-11-22 05:48:45,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45 WrapperNode [2024-11-22 05:48:45,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 05:48:45,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 05:48:45,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 05:48:45,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 05:48:45,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:45,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:46,692 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5251 [2024-11-22 05:48:46,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 05:48:46,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 05:48:46,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 05:48:46,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 05:48:46,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:46,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:46,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,249 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]. [2024-11-22 05:48:47,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 05:48:47,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 05:48:47,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 05:48:47,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 05:48:47,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 05:48:47,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:48:47,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:48:47,817 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) [2024-11-22 05:48:47,821 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 [2024-11-22 05:48:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 05:48:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 05:48:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 05:48:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 05:48:48,268 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 05:48:48,270 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 05:48:53,699 INFO L? ?]: Removed 2910 outVars from TransFormulas that were not future-live. [2024-11-22 05:48:53,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 05:48:53,750 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 05:48:53,750 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 05:48:53,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:53 BoogieIcfgContainer [2024-11-22 05:48:53,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 05:48:53,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 05:48:53,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 05:48:53,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 05:48:53,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:44" (1/3) ... [2024-11-22 05:48:53,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255dc105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:53, skipping insertion in model container [2024-11-22 05:48:53,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (2/3) ... [2024-11-22 05:48:53,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255dc105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:53, skipping insertion in model container [2024-11-22 05:48:53,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:53" (3/3) ... [2024-11-22 05:48:53,760 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.resistance.1.prop1-func-interl.c [2024-11-22 05:48:53,780 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 05:48:53,780 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 05:48:53,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 05:48:53,902 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;@6ca9ef19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 05:48:53,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 05:48:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 1875 states, 1873 states have (on average 1.5002669514148426) internal successors, (2810), 1874 states have internal predecessors, (2810), 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) [2024-11-22 05:48:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 05:48:53,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:53,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:53,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:53,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash 873458587, now seen corresponding path program 1 times [2024-11-22 05:48:53,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:53,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357114704] [2024-11-22 05:48:53,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:53,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:55,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:55,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357114704] [2024-11-22 05:48:55,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357114704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:55,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:55,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:48:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006932353] [2024-11-22 05:48:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:55,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:48:55,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:48:55,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:55,067 INFO L87 Difference]: Start difference. First operand has 1875 states, 1873 states have (on average 1.5002669514148426) internal successors, (2810), 1874 states have internal predecessors, (2810), 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 4 states, 4 states have (on average 25.75) internal successors, (103), 4 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) [2024-11-22 05:48:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:55,251 INFO L93 Difference]: Finished difference Result 3647 states and 5469 transitions. [2024-11-22 05:48:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:48:55,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 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 [2024-11-22 05:48:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:55,285 INFO L225 Difference]: With dead ends: 3647 [2024-11-22 05:48:55,285 INFO L226 Difference]: Without dead ends: 1874 [2024-11-22 05:48:55,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:55,301 INFO L432 NwaCegarLoop]: 2804 mSDtfsCounter, 0 mSDsluCounter, 5602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8406 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:55,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8406 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:48:55,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2024-11-22 05:48:55,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2024-11-22 05:48:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1873 states have (on average 1.4991991457554725) internal successors, (2808), 1873 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:48:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2808 transitions. [2024-11-22 05:48:55,434 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2808 transitions. Word has length 103 [2024-11-22 05:48:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:55,436 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 2808 transitions. [2024-11-22 05:48:55,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 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) [2024-11-22 05:48:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2808 transitions. [2024-11-22 05:48:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 05:48:55,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:55,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:55,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 05:48:55,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:55,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1309108238, now seen corresponding path program 1 times [2024-11-22 05:48:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:55,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2466896] [2024-11-22 05:48:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:55,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:55,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2466896] [2024-11-22 05:48:55,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2466896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:55,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:55,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:48:55,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820123573] [2024-11-22 05:48:55,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:55,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:48:55,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:55,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:48:55,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:55,839 INFO L87 Difference]: Start difference. First operand 1874 states and 2808 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2024-11-22 05:48:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:55,939 INFO L93 Difference]: Finished difference Result 3648 states and 5467 transitions. [2024-11-22 05:48:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:48:55,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 104 [2024-11-22 05:48:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:55,949 INFO L225 Difference]: With dead ends: 3648 [2024-11-22 05:48:55,950 INFO L226 Difference]: Without dead ends: 1876 [2024-11-22 05:48:55,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:55,955 INFO L432 NwaCegarLoop]: 2804 mSDtfsCounter, 0 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8402 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:55,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8402 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:48:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-22 05:48:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1876. [2024-11-22 05:48:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1875 states have (on average 1.4986666666666666) internal successors, (2810), 1875 states have internal predecessors, (2810), 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) [2024-11-22 05:48:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2810 transitions. [2024-11-22 05:48:56,002 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2810 transitions. Word has length 104 [2024-11-22 05:48:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:56,003 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2810 transitions. [2024-11-22 05:48:56,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2024-11-22 05:48:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2810 transitions. [2024-11-22 05:48:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 05:48:56,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:56,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:56,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 05:48:56,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:56,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 829684436, now seen corresponding path program 1 times [2024-11-22 05:48:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:56,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130419122] [2024-11-22 05:48:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:56,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:56,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130419122] [2024-11-22 05:48:56,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130419122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:56,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:56,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:48:56,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202778867] [2024-11-22 05:48:56,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:56,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:48:56,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:48:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:48:56,343 INFO L87 Difference]: Start difference. First operand 1876 states and 2810 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-22 05:48:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:56,452 INFO L93 Difference]: Finished difference Result 3656 states and 5477 transitions. [2024-11-22 05:48:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:48:56,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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 105 [2024-11-22 05:48:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:56,461 INFO L225 Difference]: With dead ends: 3656 [2024-11-22 05:48:56,461 INFO L226 Difference]: Without dead ends: 1882 [2024-11-22 05:48:56,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:48:56,466 INFO L432 NwaCegarLoop]: 2803 mSDtfsCounter, 4 mSDsluCounter, 8397 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11200 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:56,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11200 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:48:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2024-11-22 05:48:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2024-11-22 05:48:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1881 states have (on average 1.4981392876129718) internal successors, (2818), 1881 states have internal predecessors, (2818), 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) [2024-11-22 05:48:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2818 transitions. [2024-11-22 05:48:56,508 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2818 transitions. Word has length 105 [2024-11-22 05:48:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:56,510 INFO L471 AbstractCegarLoop]: Abstraction has 1882 states and 2818 transitions. [2024-11-22 05:48:56,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-22 05:48:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2818 transitions. [2024-11-22 05:48:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 05:48:56,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:56,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:56,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 05:48:56,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:56,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1004471324, now seen corresponding path program 1 times [2024-11-22 05:48:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:56,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293051444] [2024-11-22 05:48:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:56,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293051444] [2024-11-22 05:48:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293051444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:56,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:56,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:48:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600145637] [2024-11-22 05:48:56,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:56,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:48:56,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:48:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:48:56,784 INFO L87 Difference]: Start difference. First operand 1882 states and 2818 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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) [2024-11-22 05:48:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:56,861 INFO L93 Difference]: Finished difference Result 3664 states and 5487 transitions. [2024-11-22 05:48:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:48:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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 106 [2024-11-22 05:48:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:56,868 INFO L225 Difference]: With dead ends: 3664 [2024-11-22 05:48:56,868 INFO L226 Difference]: Without dead ends: 1884 [2024-11-22 05:48:56,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:48:56,872 INFO L432 NwaCegarLoop]: 2804 mSDtfsCounter, 0 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:56,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8396 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:48:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-11-22 05:48:56,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1884. [2024-11-22 05:48:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1883 states have (on average 1.4976101964949549) internal successors, (2820), 1883 states have internal predecessors, (2820), 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) [2024-11-22 05:48:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2820 transitions. [2024-11-22 05:48:56,906 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2820 transitions. Word has length 106 [2024-11-22 05:48:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:56,907 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2820 transitions. [2024-11-22 05:48:56,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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) [2024-11-22 05:48:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2820 transitions. [2024-11-22 05:48:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 05:48:56,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:56,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:56,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 05:48:56,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:56,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:56,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1858845613, now seen corresponding path program 1 times [2024-11-22 05:48:56,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:56,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292339516] [2024-11-22 05:48:56,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:56,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292339516] [2024-11-22 05:48:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292339516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:57,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:48:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456091894] [2024-11-22 05:48:57,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:57,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:48:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:57,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:48:57,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:57,119 INFO L87 Difference]: Start difference. First operand 1884 states and 2820 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-22 05:48:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:57,191 INFO L93 Difference]: Finished difference Result 3670 states and 5493 transitions. [2024-11-22 05:48:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:48:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 107 [2024-11-22 05:48:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:57,199 INFO L225 Difference]: With dead ends: 3670 [2024-11-22 05:48:57,200 INFO L226 Difference]: Without dead ends: 1888 [2024-11-22 05:48:57,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:48:57,203 INFO L432 NwaCegarLoop]: 2804 mSDtfsCounter, 0 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:57,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8396 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:48:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-22 05:48:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1884. [2024-11-22 05:48:57,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1883 states have (on average 1.4976101964949549) internal successors, (2820), 1883 states have internal predecessors, (2820), 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) [2024-11-22 05:48:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2820 transitions. [2024-11-22 05:48:57,241 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2820 transitions. Word has length 107 [2024-11-22 05:48:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:57,242 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2820 transitions. [2024-11-22 05:48:57,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-22 05:48:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2820 transitions. [2024-11-22 05:48:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 05:48:57,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:57,246 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:57,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 05:48:57,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:57,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1596440676, now seen corresponding path program 1 times [2024-11-22 05:48:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:57,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363729210] [2024-11-22 05:48:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:57,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:48:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:48:57,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:48:57,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363729210] [2024-11-22 05:48:57,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363729210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:48:57,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:48:57,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:48:57,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344780750] [2024-11-22 05:48:57,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:48:57,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:48:57,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:48:57,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:48:57,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:48:57,665 INFO L87 Difference]: Start difference. First operand 1884 states and 2820 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-22 05:48:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:48:59,616 INFO L93 Difference]: Finished difference Result 5436 states and 8138 transitions. [2024-11-22 05:48:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:48:59,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 108 [2024-11-22 05:48:59,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:48:59,629 INFO L225 Difference]: With dead ends: 5436 [2024-11-22 05:48:59,630 INFO L226 Difference]: Without dead ends: 3654 [2024-11-22 05:48:59,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:48:59,634 INFO L432 NwaCegarLoop]: 2205 mSDtfsCounter, 2690 mSDsluCounter, 6524 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 8729 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 05:48:59,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 8729 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 05:48:59,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2024-11-22 05:48:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 1983. [2024-11-22 05:48:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1982 states have (on average 1.4959636730575177) internal successors, (2965), 1982 states have internal predecessors, (2965), 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) [2024-11-22 05:48:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2965 transitions. [2024-11-22 05:48:59,699 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2965 transitions. Word has length 108 [2024-11-22 05:48:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:48:59,700 INFO L471 AbstractCegarLoop]: Abstraction has 1983 states and 2965 transitions. [2024-11-22 05:48:59,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-22 05:48:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2965 transitions. [2024-11-22 05:48:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 05:48:59,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:48:59,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:48:59,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 05:48:59,702 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:48:59,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:48:59,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1925673750, now seen corresponding path program 1 times [2024-11-22 05:48:59,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:48:59,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823735153] [2024-11-22 05:48:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:48:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:48:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:00,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:00,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823735153] [2024-11-22 05:49:00,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823735153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:00,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:49:00,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:49:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604094657] [2024-11-22 05:49:00,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:00,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:49:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:49:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:49:00,315 INFO L87 Difference]: Start difference. First operand 1983 states and 2965 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-22 05:49:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:00,439 INFO L93 Difference]: Finished difference Result 3786 states and 5661 transitions. [2024-11-22 05:49:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:49:00,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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 109 [2024-11-22 05:49:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:00,447 INFO L225 Difference]: With dead ends: 3786 [2024-11-22 05:49:00,447 INFO L226 Difference]: Without dead ends: 1999 [2024-11-22 05:49:00,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:49:00,451 INFO L432 NwaCegarLoop]: 2800 mSDtfsCounter, 2727 mSDsluCounter, 8389 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 11189 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:00,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 11189 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:49:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2024-11-22 05:49:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1991. [2024-11-22 05:49:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1990 states have (on average 1.4959798994974873) internal successors, (2977), 1990 states have internal predecessors, (2977), 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) [2024-11-22 05:49:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2977 transitions. [2024-11-22 05:49:00,488 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2977 transitions. Word has length 109 [2024-11-22 05:49:00,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:00,488 INFO L471 AbstractCegarLoop]: Abstraction has 1991 states and 2977 transitions. [2024-11-22 05:49:00,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-22 05:49:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2977 transitions. [2024-11-22 05:49:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 05:49:00,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:00,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:00,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 05:49:00,490 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:00,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1847183232, now seen corresponding path program 1 times [2024-11-22 05:49:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:00,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047341061] [2024-11-22 05:49:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:01,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:01,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047341061] [2024-11-22 05:49:01,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047341061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:01,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:49:01,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:49:01,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393165794] [2024-11-22 05:49:01,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:01,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:49:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:01,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:49:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:49:01,043 INFO L87 Difference]: Start difference. First operand 1991 states and 2977 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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) [2024-11-22 05:49:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:01,271 INFO L93 Difference]: Finished difference Result 4964 states and 7426 transitions. [2024-11-22 05:49:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:49:01,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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 110 [2024-11-22 05:49:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:01,283 INFO L225 Difference]: With dead ends: 4964 [2024-11-22 05:49:01,283 INFO L226 Difference]: Without dead ends: 3160 [2024-11-22 05:49:01,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:49:01,287 INFO L432 NwaCegarLoop]: 2794 mSDtfsCounter, 1965 mSDsluCounter, 10962 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 13756 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:01,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 13756 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:49:01,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2024-11-22 05:49:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 1978. [2024-11-22 05:49:01,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.4962063732928679) internal successors, (2958), 1977 states have internal predecessors, (2958), 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) [2024-11-22 05:49:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2958 transitions. [2024-11-22 05:49:01,372 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2958 transitions. Word has length 110 [2024-11-22 05:49:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:01,372 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2958 transitions. [2024-11-22 05:49:01,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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) [2024-11-22 05:49:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2958 transitions. [2024-11-22 05:49:01,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2024-11-22 05:49:01,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:01,397 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:01,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 05:49:01,397 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:01,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:01,398 INFO L85 PathProgramCache]: Analyzing trace with hash -553625763, now seen corresponding path program 1 times [2024-11-22 05:49:01,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:01,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307274974] [2024-11-22 05:49:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:01,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:07,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:07,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307274974] [2024-11-22 05:49:07,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307274974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:49:07,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074887534] [2024-11-22 05:49:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:07,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:07,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:49:07,224 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) [2024-11-22 05:49:07,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 05:49:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:08,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 4268 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 05:49:08,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:49:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:13,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:49:13,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074887534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:13,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:49:13,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 05:49:13,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997969716] [2024-11-22 05:49:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:13,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:49:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:49:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:49:13,838 INFO L87 Difference]: Start difference. First operand 1978 states and 2958 transitions. Second operand has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 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) [2024-11-22 05:49:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:15,675 INFO L93 Difference]: Finished difference Result 5424 states and 8120 transitions. [2024-11-22 05:49:15,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:49:15,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 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 986 [2024-11-22 05:49:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:15,691 INFO L225 Difference]: With dead ends: 5424 [2024-11-22 05:49:15,692 INFO L226 Difference]: Without dead ends: 3638 [2024-11-22 05:49:15,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 985 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 05:49:15,696 INFO L432 NwaCegarLoop]: 2366 mSDtfsCounter, 1673 mSDsluCounter, 6728 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 9094 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:15,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 9094 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 05:49:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2024-11-22 05:49:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3636. [2024-11-22 05:49:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3635 states have (on average 1.497111416781293) internal successors, (5442), 3635 states have internal predecessors, (5442), 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) [2024-11-22 05:49:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5442 transitions. [2024-11-22 05:49:15,776 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5442 transitions. Word has length 986 [2024-11-22 05:49:15,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:15,778 INFO L471 AbstractCegarLoop]: Abstraction has 3636 states and 5442 transitions. [2024-11-22 05:49:15,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.2) internal successors, (986), 5 states have internal predecessors, (986), 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) [2024-11-22 05:49:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5442 transitions. [2024-11-22 05:49:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 988 [2024-11-22 05:49:15,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:15,804 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:15,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 05:49:16,005 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 [2024-11-22 05:49:16,005 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:16,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:16,006 INFO L85 PathProgramCache]: Analyzing trace with hash 607364554, now seen corresponding path program 1 times [2024-11-22 05:49:16,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:16,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469389283] [2024-11-22 05:49:16,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:16,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:20,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:20,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469389283] [2024-11-22 05:49:20,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469389283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:49:20,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505551596] [2024-11-22 05:49:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:20,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:20,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:49:20,687 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) [2024-11-22 05:49:20,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 05:49:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:22,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 4271 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 05:49:22,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:49:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:24,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:49:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505551596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:24,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:49:24,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 05:49:24,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512425425] [2024-11-22 05:49:24,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:24,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:49:24,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:49:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:49:24,842 INFO L87 Difference]: Start difference. First operand 3636 states and 5442 transitions. Second operand has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 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) [2024-11-22 05:49:26,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:26,341 INFO L93 Difference]: Finished difference Result 8752 states and 13103 transitions. [2024-11-22 05:49:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:49:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 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 987 [2024-11-22 05:49:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:26,370 INFO L225 Difference]: With dead ends: 8752 [2024-11-22 05:49:26,370 INFO L226 Difference]: Without dead ends: 5308 [2024-11-22 05:49:26,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-22 05:49:26,377 INFO L432 NwaCegarLoop]: 2377 mSDtfsCounter, 1670 mSDsluCounter, 6747 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:26,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 9124 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 05:49:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2024-11-22 05:49:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5305. [2024-11-22 05:49:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5304 states have (on average 1.4973604826546003) internal successors, (7942), 5304 states have internal predecessors, (7942), 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) [2024-11-22 05:49:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 7942 transitions. [2024-11-22 05:49:26,500 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 7942 transitions. Word has length 987 [2024-11-22 05:49:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:26,501 INFO L471 AbstractCegarLoop]: Abstraction has 5305 states and 7942 transitions. [2024-11-22 05:49:26,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 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) [2024-11-22 05:49:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 7942 transitions. [2024-11-22 05:49:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2024-11-22 05:49:26,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:26,532 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:26,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 05:49:26,732 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,SelfDestructingSolverStorable9 [2024-11-22 05:49:26,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:26,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:26,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1612231104, now seen corresponding path program 1 times [2024-11-22 05:49:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384108603] [2024-11-22 05:49:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:26,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:30,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384108603] [2024-11-22 05:49:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384108603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:49:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437448436] [2024-11-22 05:49:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:30,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:49:30,470 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) [2024-11-22 05:49:30,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 05:49:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:31,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 4272 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 05:49:31,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:49:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:32,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:49:32,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437448436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:32,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:49:32,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 05:49:32,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302454166] [2024-11-22 05:49:32,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:32,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:49:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:32,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:49:32,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 05:49:32,219 INFO L87 Difference]: Start difference. First operand 5305 states and 7942 transitions. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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) [2024-11-22 05:49:33,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:33,701 INFO L93 Difference]: Finished difference Result 14527 states and 21745 transitions. [2024-11-22 05:49:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:49:33,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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 988 [2024-11-22 05:49:33,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:33,716 INFO L225 Difference]: With dead ends: 14527 [2024-11-22 05:49:33,716 INFO L226 Difference]: Without dead ends: 9414 [2024-11-22 05:49:33,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 05:49:33,725 INFO L432 NwaCegarLoop]: 2475 mSDtfsCounter, 2791 mSDsluCounter, 10805 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 13280 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:33,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2791 Valid, 13280 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 05:49:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2024-11-22 05:49:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 5815. [2024-11-22 05:49:33,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5814 states have (on average 1.4953560371517027) internal successors, (8694), 5814 states have internal predecessors, (8694), 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) [2024-11-22 05:49:33,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 8694 transitions. [2024-11-22 05:49:33,825 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 8694 transitions. Word has length 988 [2024-11-22 05:49:33,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:33,825 INFO L471 AbstractCegarLoop]: Abstraction has 5815 states and 8694 transitions. [2024-11-22 05:49:33,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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) [2024-11-22 05:49:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 8694 transitions. [2024-11-22 05:49:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2024-11-22 05:49:33,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:33,836 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:33,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 05:49:34,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:34,037 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:34,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:34,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1430481522, now seen corresponding path program 1 times [2024-11-22 05:49:34,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:34,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756570310] [2024-11-22 05:49:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:34,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756570310] [2024-11-22 05:49:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756570310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:49:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910800502] [2024-11-22 05:49:37,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:37,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:37,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:49:37,509 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) [2024-11-22 05:49:37,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 05:49:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:38,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 05:49:38,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:49:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:39,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:49:39,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910800502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:39,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:49:39,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 05:49:39,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959511105] [2024-11-22 05:49:39,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:39,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:49:39,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:39,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:49:39,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 05:49:39,608 INFO L87 Difference]: Start difference. First operand 5815 states and 8694 transitions. Second operand has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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) [2024-11-22 05:49:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:49:41,307 INFO L93 Difference]: Finished difference Result 14051 states and 21025 transitions. [2024-11-22 05:49:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:49:41,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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 989 [2024-11-22 05:49:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:49:41,322 INFO L225 Difference]: With dead ends: 14051 [2024-11-22 05:49:41,323 INFO L226 Difference]: Without dead ends: 8506 [2024-11-22 05:49:41,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-22 05:49:41,332 INFO L432 NwaCegarLoop]: 2758 mSDtfsCounter, 4317 mSDsluCounter, 7672 mSDsCounter, 0 mSdLazyCounter, 2950 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 10430 SdHoareTripleChecker+Invalid, 2951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 05:49:41,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 10430 Invalid, 2951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2950 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 05:49:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2024-11-22 05:49:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7057. [2024-11-22 05:49:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 1.495748299319728) internal successors, (10554), 7056 states have internal predecessors, (10554), 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) [2024-11-22 05:49:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 10554 transitions. [2024-11-22 05:49:41,464 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 10554 transitions. Word has length 989 [2024-11-22 05:49:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:49:41,464 INFO L471 AbstractCegarLoop]: Abstraction has 7057 states and 10554 transitions. [2024-11-22 05:49:41,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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) [2024-11-22 05:49:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 10554 transitions. [2024-11-22 05:49:41,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2024-11-22 05:49:41,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:49:41,478 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:49:41,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 05:49:41,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:41,679 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:49:41,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:49:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash 614203423, now seen corresponding path program 1 times [2024-11-22 05:49:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:49:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258505772] [2024-11-22 05:49:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:41,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:49:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:44,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:49:44,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258505772] [2024-11-22 05:49:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258505772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:49:44,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904485358] [2024-11-22 05:49:44,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:49:44,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:49:44,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:49:44,656 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) [2024-11-22 05:49:44,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 05:49:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:49:45,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 221 conjuncts are in the unsatisfiable core [2024-11-22 05:49:46,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:49:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:49:46,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:49:46,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904485358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:49:46,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:49:46,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 05:49:46,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354487887] [2024-11-22 05:49:46,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:49:46,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:49:46,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:49:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:49:46,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-22 05:49:46,334 INFO L87 Difference]: Start difference. First operand 7057 states and 10554 transitions. Second operand has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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)