./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label29.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label29.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f598b1db7f2b2cd1017a328f20419506fd47df23c7e336ea67891b462314c30 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:32:24,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:32:24,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:32:24,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:32:24,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:32:24,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:32:24,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:32:24,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:32:24,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:32:24,935 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:32:24,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:32:24,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:32:24,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:32:24,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:32:24,941 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:32:24,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:32:24,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:32:24,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:32:24,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:32:24,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:32:24,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:32:24,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:32:24,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:32:24,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:32:24,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:32:24,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:32:24,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:32:24,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:32:24,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:32:24,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:32:24,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:32:24,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:32:24,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:32:24,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:32:24,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:32:24,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:32:24,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:32:24,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:32:24,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:32:24,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:32:24,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:32:24,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:32:24,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f598b1db7f2b2cd1017a328f20419506fd47df23c7e336ea67891b462314c30 [2024-11-18 10:32:25,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:32:25,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:32:25,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:32:25,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:32:25,284 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:32:25,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label29.c [2024-11-18 10:32:26,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:32:27,236 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:32:27,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label29.c [2024-11-18 10:32:27,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0eb420/f4b02f54c3b44bbd9a7df71cb6ede46e/FLAG1d6901800 [2024-11-18 10:32:27,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0eb420/f4b02f54c3b44bbd9a7df71cb6ede46e [2024-11-18 10:32:27,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:32:27,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:32:27,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:32:27,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:32:27,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:32:27,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:32:27" (1/1) ... [2024-11-18 10:32:27,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4222b4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:27, skipping insertion in model container [2024-11-18 10:32:27,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:32:27" (1/1) ... [2024-11-18 10:32:27,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:32:27,731 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label29.c[2333,2346] [2024-11-18 10:32:28,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:32:28,895 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:32:28,912 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label29.c[2333,2346] [2024-11-18 10:32:29,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:32:29,442 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:32:29,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29 WrapperNode [2024-11-18 10:32:29,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:32:29,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:32:29,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:32:29,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:32:29,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:29,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,090 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2024-11-18 10:32:30,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:32:30,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:32:30,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:32:30,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:32:30,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,511 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:32:30,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:30,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:31,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:32:31,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:32:31,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:32:31,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:32:31,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (1/1) ... [2024-11-18 10:32:31,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:32:31,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:32:31,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:32:31,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:32:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:32:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:32:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:32:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:32:31,201 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:32:31,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:32:37,089 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-18 10:32:37,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:32:37,142 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:32:37,142 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:32:37,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:32:37 BoogieIcfgContainer [2024-11-18 10:32:37,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:32:37,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:32:37,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:32:37,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:32:37,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:32:27" (1/3) ... [2024-11-18 10:32:37,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36754a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:32:37, skipping insertion in model container [2024-11-18 10:32:37,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:32:29" (2/3) ... [2024-11-18 10:32:37,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36754a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:32:37, skipping insertion in model container [2024-11-18 10:32:37,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:32:37" (3/3) ... [2024-11-18 10:32:37,153 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label29.c [2024-11-18 10:32:37,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:32:37,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:32:37,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:32:37,288 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;@7221a407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:32:37,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:32:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:37,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-18 10:32:37,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:37,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:32:37,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:37,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:37,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1414013846, now seen corresponding path program 1 times [2024-11-18 10:32:37,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:37,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926596231] [2024-11-18 10:32:37,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:37,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:32:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:37,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926596231] [2024-11-18 10:32:37,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926596231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:37,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:37,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:32:37,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405784489] [2024-11-18 10:32:37,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:37,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:37,620 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:41,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:32:41,977 INFO L93 Difference]: Finished difference Result 3082 states and 5689 transitions. [2024-11-18 10:32:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:32:41,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2024-11-18 10:32:41,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:32:42,006 INFO L225 Difference]: With dead ends: 3082 [2024-11-18 10:32:42,006 INFO L226 Difference]: Without dead ends: 1899 [2024-11-18 10:32:42,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:42,015 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1025 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:32:42,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 641 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-18 10:32:42,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-18 10:32:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1894. [2024-11-18 10:32:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1893 states have (on average 1.7374537770734284) internal successors, (3289), 1893 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:42,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 3289 transitions. [2024-11-18 10:32:42,137 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 3289 transitions. Word has length 14 [2024-11-18 10:32:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:32:42,138 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 3289 transitions. [2024-11-18 10:32:42,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 3289 transitions. [2024-11-18 10:32:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 10:32:42,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:42,141 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:32:42,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:32:42,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:42,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash 107877298, now seen corresponding path program 1 times [2024-11-18 10:32:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066593896] [2024-11-18 10:32:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:32:42,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:42,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066593896] [2024-11-18 10:32:42,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066593896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:42,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:42,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:32:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076418134] [2024-11-18 10:32:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:42,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:42,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:42,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:42,454 INFO L87 Difference]: Start difference. First operand 1894 states and 3289 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:32:46,207 INFO L93 Difference]: Finished difference Result 5384 states and 9441 transitions. [2024-11-18 10:32:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:32:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2024-11-18 10:32:46,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:32:46,222 INFO L225 Difference]: With dead ends: 5384 [2024-11-18 10:32:46,222 INFO L226 Difference]: Without dead ends: 3492 [2024-11-18 10:32:46,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:46,228 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:32:46,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1013 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-18 10:32:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-11-18 10:32:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3491. [2024-11-18 10:32:46,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3490 states have (on average 1.5383954154727795) internal successors, (5369), 3490 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5369 transitions. [2024-11-18 10:32:46,314 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5369 transitions. Word has length 79 [2024-11-18 10:32:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:32:46,314 INFO L471 AbstractCegarLoop]: Abstraction has 3491 states and 5369 transitions. [2024-11-18 10:32:46,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5369 transitions. [2024-11-18 10:32:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 10:32:46,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:46,317 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:32:46,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:32:46,318 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:46,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash -845828371, now seen corresponding path program 1 times [2024-11-18 10:32:46,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:46,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157860902] [2024-11-18 10:32:46,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:46,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:32:46,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:46,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157860902] [2024-11-18 10:32:46,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157860902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:46,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:46,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:32:46,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953086505] [2024-11-18 10:32:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:46,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:46,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:46,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:46,513 INFO L87 Difference]: Start difference. First operand 3491 states and 5369 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:32:49,789 INFO L93 Difference]: Finished difference Result 10169 states and 15700 transitions. [2024-11-18 10:32:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:32:49,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2024-11-18 10:32:49,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:32:49,816 INFO L225 Difference]: With dead ends: 10169 [2024-11-18 10:32:49,817 INFO L226 Difference]: Without dead ends: 6680 [2024-11-18 10:32:49,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:49,826 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:32:49,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 847 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-18 10:32:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2024-11-18 10:32:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6669. [2024-11-18 10:32:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 6668 states have (on average 1.375224955008998) internal successors, (9170), 6668 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9170 transitions. [2024-11-18 10:32:49,957 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 9170 transitions. Word has length 81 [2024-11-18 10:32:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:32:49,960 INFO L471 AbstractCegarLoop]: Abstraction has 6669 states and 9170 transitions. [2024-11-18 10:32:49,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 9170 transitions. [2024-11-18 10:32:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 10:32:49,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:49,967 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:32:49,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:32:49,968 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:49,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash -477490145, now seen corresponding path program 1 times [2024-11-18 10:32:49,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:49,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954102484] [2024-11-18 10:32:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:49,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:32:50,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:50,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954102484] [2024-11-18 10:32:50,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954102484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:50,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:50,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:32:50,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373456979] [2024-11-18 10:32:50,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:50,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:50,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:50,180 INFO L87 Difference]: Start difference. First operand 6669 states and 9170 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:32:53,793 INFO L93 Difference]: Finished difference Result 19629 states and 27006 transitions. [2024-11-18 10:32:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:32:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2024-11-18 10:32:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:32:53,831 INFO L225 Difference]: With dead ends: 19629 [2024-11-18 10:32:53,831 INFO L226 Difference]: Without dead ends: 12962 [2024-11-18 10:32:53,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:53,848 INFO L432 NwaCegarLoop]: 1861 mSDtfsCounter, 920 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:32:53,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2001 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 10:32:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2024-11-18 10:32:54,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 12957. [2024-11-18 10:32:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12957 states, 12956 states have (on average 1.272537820314912) internal successors, (16487), 12956 states have internal predecessors, (16487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12957 states to 12957 states and 16487 transitions. [2024-11-18 10:32:54,110 INFO L78 Accepts]: Start accepts. Automaton has 12957 states and 16487 transitions. Word has length 125 [2024-11-18 10:32:54,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:32:54,112 INFO L471 AbstractCegarLoop]: Abstraction has 12957 states and 16487 transitions. [2024-11-18 10:32:54,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 12957 states and 16487 transitions. [2024-11-18 10:32:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 10:32:54,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:54,118 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 10:32:54,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:32:54,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:54,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1845724562, now seen corresponding path program 1 times [2024-11-18 10:32:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:54,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476201445] [2024-11-18 10:32:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:54,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:32:54,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:54,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476201445] [2024-11-18 10:32:54,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476201445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:54,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:54,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:32:54,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694893493] [2024-11-18 10:32:54,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:54,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:54,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:54,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:54,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:54,398 INFO L87 Difference]: Start difference. First operand 12957 states and 16487 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:32:57,393 INFO L93 Difference]: Finished difference Result 22765 states and 29540 transitions. [2024-11-18 10:32:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:32:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-11-18 10:32:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:32:57,417 INFO L225 Difference]: With dead ends: 22765 [2024-11-18 10:32:57,418 INFO L226 Difference]: Without dead ends: 12179 [2024-11-18 10:32:57,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:57,428 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 728 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-18 10:32:57,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1192 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-18 10:32:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2024-11-18 10:32:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12170. [2024-11-18 10:32:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12170 states, 12169 states have (on average 1.2884378338400855) internal successors, (15679), 12169 states have internal predecessors, (15679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12170 states to 12170 states and 15679 transitions. [2024-11-18 10:32:57,626 INFO L78 Accepts]: Start accepts. Automaton has 12170 states and 15679 transitions. Word has length 130 [2024-11-18 10:32:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:32:57,626 INFO L471 AbstractCegarLoop]: Abstraction has 12170 states and 15679 transitions. [2024-11-18 10:32:57,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:32:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12170 states and 15679 transitions. [2024-11-18 10:32:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-18 10:32:57,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:32:57,631 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:32:57,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:32:57,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:32:57,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:32:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2024292359, now seen corresponding path program 1 times [2024-11-18 10:32:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:32:57,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367627911] [2024-11-18 10:32:57,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:32:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:32:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:32:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 10:32:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:32:57,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367627911] [2024-11-18 10:32:57,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367627911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:32:57,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:32:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:32:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103889718] [2024-11-18 10:32:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:32:57,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:32:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:32:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:32:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:32:57,809 INFO L87 Difference]: Start difference. First operand 12170 states and 15679 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:01,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:01,023 INFO L93 Difference]: Finished difference Result 35376 states and 45656 transitions. [2024-11-18 10:33:01,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:01,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 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 154 [2024-11-18 10:33:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:01,078 INFO L225 Difference]: With dead ends: 35376 [2024-11-18 10:33:01,079 INFO L226 Difference]: Without dead ends: 23208 [2024-11-18 10:33:01,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:01,100 INFO L432 NwaCegarLoop]: 1090 mSDtfsCounter, 780 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:01,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1236 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 10:33:01,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23208 states. [2024-11-18 10:33:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23208 to 22404. [2024-11-18 10:33:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22404 states, 22403 states have (on average 1.1934115966611614) internal successors, (26736), 22403 states have internal predecessors, (26736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22404 states to 22404 states and 26736 transitions. [2024-11-18 10:33:01,563 INFO L78 Accepts]: Start accepts. Automaton has 22404 states and 26736 transitions. Word has length 154 [2024-11-18 10:33:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:01,563 INFO L471 AbstractCegarLoop]: Abstraction has 22404 states and 26736 transitions. [2024-11-18 10:33:01,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 22404 states and 26736 transitions. [2024-11-18 10:33:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-18 10:33:01,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:01,569 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:33:01,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:33:01,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:01,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1157253765, now seen corresponding path program 1 times [2024-11-18 10:33:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:01,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116967033] [2024-11-18 10:33:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-18 10:33:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116967033] [2024-11-18 10:33:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116967033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:02,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:02,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:33:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352784962] [2024-11-18 10:33:02,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:02,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:02,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:02,005 INFO L87 Difference]: Start difference. First operand 22404 states and 26736 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:04,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:04,608 INFO L93 Difference]: Finished difference Result 44019 states and 52673 transitions. [2024-11-18 10:33:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:04,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 243 [2024-11-18 10:33:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:04,651 INFO L225 Difference]: With dead ends: 44019 [2024-11-18 10:33:04,652 INFO L226 Difference]: Without dead ends: 22404 [2024-11-18 10:33:04,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:04,675 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:04,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1196 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 10:33:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2024-11-18 10:33:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 22404. [2024-11-18 10:33:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22404 states, 22403 states have (on average 1.1931884122662144) internal successors, (26731), 22403 states have internal predecessors, (26731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22404 states to 22404 states and 26731 transitions. [2024-11-18 10:33:05,188 INFO L78 Accepts]: Start accepts. Automaton has 22404 states and 26731 transitions. Word has length 243 [2024-11-18 10:33:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:05,188 INFO L471 AbstractCegarLoop]: Abstraction has 22404 states and 26731 transitions. [2024-11-18 10:33:05,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 22404 states and 26731 transitions. [2024-11-18 10:33:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-18 10:33:05,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:05,208 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:33:05,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:33:05,208 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:05,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:05,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1131533274, now seen corresponding path program 1 times [2024-11-18 10:33:05,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:05,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856091297] [2024-11-18 10:33:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 10:33:05,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856091297] [2024-11-18 10:33:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856091297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:05,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:05,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:33:05,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201473953] [2024-11-18 10:33:05,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:05,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:05,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:05,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:05,496 INFO L87 Difference]: Start difference. First operand 22404 states and 26731 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:09,043 INFO L93 Difference]: Finished difference Result 55046 states and 66948 transitions. [2024-11-18 10:33:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2024-11-18 10:33:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:09,094 INFO L225 Difference]: With dead ends: 55046 [2024-11-18 10:33:09,094 INFO L226 Difference]: Without dead ends: 33431 [2024-11-18 10:33:09,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:09,122 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 882 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:09,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 928 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 10:33:09,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33431 states. [2024-11-18 10:33:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33431 to 32635. [2024-11-18 10:33:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32635 states, 32634 states have (on average 1.176135318992462) internal successors, (38382), 32634 states have internal predecessors, (38382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32635 states to 32635 states and 38382 transitions. [2024-11-18 10:33:09,512 INFO L78 Accepts]: Start accepts. Automaton has 32635 states and 38382 transitions. Word has length 250 [2024-11-18 10:33:09,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:09,513 INFO L471 AbstractCegarLoop]: Abstraction has 32635 states and 38382 transitions. [2024-11-18 10:33:09,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:09,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32635 states and 38382 transitions. [2024-11-18 10:33:09,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-18 10:33:09,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:09,519 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:33:09,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:33:09,519 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:09,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash -187004170, now seen corresponding path program 1 times [2024-11-18 10:33:09,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:09,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032038081] [2024-11-18 10:33:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-18 10:33:09,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:09,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032038081] [2024-11-18 10:33:09,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032038081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:09,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:09,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:33:09,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962892803] [2024-11-18 10:33:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:09,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:09,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:09,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:09,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:09,867 INFO L87 Difference]: Start difference. First operand 32635 states and 38382 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:13,464 INFO L93 Difference]: Finished difference Result 76294 states and 91193 transitions. [2024-11-18 10:33:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:13,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 305 [2024-11-18 10:33:13,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:13,512 INFO L225 Difference]: With dead ends: 76294 [2024-11-18 10:33:13,512 INFO L226 Difference]: Without dead ends: 44448 [2024-11-18 10:33:13,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:13,536 INFO L432 NwaCegarLoop]: 1806 mSDtfsCounter, 850 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:13,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1950 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 10:33:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44448 states. [2024-11-18 10:33:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44448 to 43657. [2024-11-18 10:33:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43657 states, 43656 states have (on average 1.151663001649258) internal successors, (50277), 43656 states have internal predecessors, (50277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43657 states to 43657 states and 50277 transitions. [2024-11-18 10:33:13,967 INFO L78 Accepts]: Start accepts. Automaton has 43657 states and 50277 transitions. Word has length 305 [2024-11-18 10:33:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:13,968 INFO L471 AbstractCegarLoop]: Abstraction has 43657 states and 50277 transitions. [2024-11-18 10:33:13,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 43657 states and 50277 transitions. [2024-11-18 10:33:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-18 10:33:13,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:13,973 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:33:13,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:33:13,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:13,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:13,974 INFO L85 PathProgramCache]: Analyzing trace with hash -773060605, now seen corresponding path program 1 times [2024-11-18 10:33:13,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:13,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411167986] [2024-11-18 10:33:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:13,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 152 proven. 113 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 10:33:15,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:15,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411167986] [2024-11-18 10:33:15,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411167986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:33:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636131215] [2024-11-18 10:33:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:15,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:33:15,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:33:15,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:33:15,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:33:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:15,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:33:15,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:33:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-18 10:33:15,684 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:33:15,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636131215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:15,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:33:15,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-18 10:33:15,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304964882] [2024-11-18 10:33:15,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:15,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:15,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:15,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:15,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:33:15,690 INFO L87 Difference]: Start difference. First operand 43657 states and 50277 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:18,484 INFO L93 Difference]: Finished difference Result 86516 states and 99752 transitions. [2024-11-18 10:33:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 320 [2024-11-18 10:33:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:18,537 INFO L225 Difference]: With dead ends: 86516 [2024-11-18 10:33:18,538 INFO L226 Difference]: Without dead ends: 43648 [2024-11-18 10:33:18,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:33:18,568 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1076 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:18,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 818 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 10:33:18,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43648 states. [2024-11-18 10:33:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43648 to 43647. [2024-11-18 10:33:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43647 states, 43646 states have (on average 1.1132749851074555) internal successors, (48590), 43646 states have internal predecessors, (48590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43647 states to 43647 states and 48590 transitions. [2024-11-18 10:33:19,285 INFO L78 Accepts]: Start accepts. Automaton has 43647 states and 48590 transitions. Word has length 320 [2024-11-18 10:33:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:19,286 INFO L471 AbstractCegarLoop]: Abstraction has 43647 states and 48590 transitions. [2024-11-18 10:33:19,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:19,287 INFO L276 IsEmpty]: Start isEmpty. Operand 43647 states and 48590 transitions. [2024-11-18 10:33:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-18 10:33:19,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:19,296 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:33:19,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 10:33:19,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 10:33:19,497 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:19,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1427385796, now seen corresponding path program 1 times [2024-11-18 10:33:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:19,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042337512] [2024-11-18 10:33:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:19,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-18 10:33:20,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:20,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042337512] [2024-11-18 10:33:20,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042337512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:20,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:20,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:33:20,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341558009] [2024-11-18 10:33:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:20,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:20,156 INFO L87 Difference]: Start difference. First operand 43647 states and 48590 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:23,139 INFO L93 Difference]: Finished difference Result 86503 states and 96385 transitions. [2024-11-18 10:33:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:23,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 339 [2024-11-18 10:33:23,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:23,186 INFO L225 Difference]: With dead ends: 86503 [2024-11-18 10:33:23,186 INFO L226 Difference]: Without dead ends: 43645 [2024-11-18 10:33:23,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:23,213 INFO L432 NwaCegarLoop]: 1342 mSDtfsCounter, 1188 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:23,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1421 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-18 10:33:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43645 states. [2024-11-18 10:33:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43645 to 43644. [2024-11-18 10:33:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43644 states, 43643 states have (on average 1.086588914602571) internal successors, (47422), 43643 states have internal predecessors, (47422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43644 states to 43644 states and 47422 transitions. [2024-11-18 10:33:23,590 INFO L78 Accepts]: Start accepts. Automaton has 43644 states and 47422 transitions. Word has length 339 [2024-11-18 10:33:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:23,591 INFO L471 AbstractCegarLoop]: Abstraction has 43644 states and 47422 transitions. [2024-11-18 10:33:23,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 43644 states and 47422 transitions. [2024-11-18 10:33:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-18 10:33:23,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:23,596 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:33:23,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:33:23,597 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:23,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:23,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1320971521, now seen corresponding path program 1 times [2024-11-18 10:33:23,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:23,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479679759] [2024-11-18 10:33:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 10:33:23,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:23,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479679759] [2024-11-18 10:33:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479679759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:23,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:33:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954458749] [2024-11-18 10:33:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:23,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:33:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:33:23,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:33:23,946 INFO L87 Difference]: Start difference. First operand 43644 states and 47422 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:29,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:29,941 INFO L93 Difference]: Finished difference Result 150458 states and 163809 transitions. [2024-11-18 10:33:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:33:29,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 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 362 [2024-11-18 10:33:29,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:30,091 INFO L225 Difference]: With dead ends: 150458 [2024-11-18 10:33:30,091 INFO L226 Difference]: Without dead ends: 107603 [2024-11-18 10:33:30,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:33:30,125 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 1712 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 6004 mSolverCounterSat, 1095 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 7099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 6004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:30,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 753 Invalid, 7099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1095 Valid, 6004 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-18 10:33:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107603 states. [2024-11-18 10:33:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107603 to 104326. [2024-11-18 10:33:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104326 states, 104325 states have (on average 1.0794344596213754) internal successors, (112612), 104325 states have internal predecessors, (112612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104326 states to 104326 states and 112612 transitions. [2024-11-18 10:33:31,759 INFO L78 Accepts]: Start accepts. Automaton has 104326 states and 112612 transitions. Word has length 362 [2024-11-18 10:33:31,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:31,759 INFO L471 AbstractCegarLoop]: Abstraction has 104326 states and 112612 transitions. [2024-11-18 10:33:31,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 104326 states and 112612 transitions. [2024-11-18 10:33:31,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-18 10:33:31,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:31,780 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:33:31,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:33:31,780 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:31,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 308905835, now seen corresponding path program 1 times [2024-11-18 10:33:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632147265] [2024-11-18 10:33:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 324 proven. 110 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 10:33:33,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:33,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632147265] [2024-11-18 10:33:33,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632147265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:33:33,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105396356] [2024-11-18 10:33:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:33,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:33:33,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:33:33,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:33:33,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 10:33:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:33,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 10:33:33,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:33:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-18 10:33:34,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:33:34,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105396356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:34,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:33:34,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-18 10:33:34,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898534688] [2024-11-18 10:33:34,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:34,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:34,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:33:34,006 INFO L87 Difference]: Start difference. First operand 104326 states and 112612 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:37,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:33:37,091 INFO L93 Difference]: Finished difference Result 202358 states and 218743 transitions. [2024-11-18 10:33:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:33:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 405 [2024-11-18 10:33:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:33:37,222 INFO L225 Difference]: With dead ends: 202358 [2024-11-18 10:33:37,222 INFO L226 Difference]: Without dead ends: 108272 [2024-11-18 10:33:37,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:33:37,490 INFO L432 NwaCegarLoop]: 1033 mSDtfsCounter, 683 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:33:37,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1167 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 10:33:37,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108272 states. [2024-11-18 10:33:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108272 to 106688. [2024-11-18 10:33:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106688 states, 106687 states have (on average 1.0717519472850487) internal successors, (114342), 106687 states have internal predecessors, (114342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:39,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106688 states to 106688 states and 114342 transitions. [2024-11-18 10:33:39,132 INFO L78 Accepts]: Start accepts. Automaton has 106688 states and 114342 transitions. Word has length 405 [2024-11-18 10:33:39,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:33:39,132 INFO L471 AbstractCegarLoop]: Abstraction has 106688 states and 114342 transitions. [2024-11-18 10:33:39,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:33:39,133 INFO L276 IsEmpty]: Start isEmpty. Operand 106688 states and 114342 transitions. [2024-11-18 10:33:39,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-18 10:33:39,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:33:39,140 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:33:39,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 10:33:39,343 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,SelfDestructingSolverStorable12 [2024-11-18 10:33:39,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:33:39,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:33:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash -397722901, now seen corresponding path program 1 times [2024-11-18 10:33:39,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:33:39,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643883437] [2024-11-18 10:33:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:33:39,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:33:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:33:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-18 10:33:39,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:33:39,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643883437] [2024-11-18 10:33:39,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643883437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:33:39,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:33:39,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:33:39,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355734062] [2024-11-18 10:33:39,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:33:39,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:33:39,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:33:39,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:33:39,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:33:39,601 INFO L87 Difference]: Start difference. First operand 106688 states and 114342 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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)