./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/Problem17_label46.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 41cafc53a40b6e7779bbda9324b8e7811f318944543219bcda44525ed08008a3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:41:28,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:41:28,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:41:28,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:41:28,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:41:28,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:41:28,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:41:28,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:41:28,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:41:28,170 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:41:28,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:41:28,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:41:28,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:41:28,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:41:28,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:41:28,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:41:28,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:41:28,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:41:28,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:41:28,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:41:28,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:41:28,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:41:28,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:41:28,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:41:28,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:41:28,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:41:28,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:41:28,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:41:28,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:41:28,178 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:41:28,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:41:28,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:41:28,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cafc53a40b6e7779bbda9324b8e7811f318944543219bcda44525ed08008a3 [2024-11-08 11:41:28,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:41:28,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:41:28,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:41:28,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:41:28,388 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:41:28,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label46.c [2024-11-08 11:41:29,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:41:29,875 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:41:29,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label46.c [2024-11-08 11:41:29,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b026921e/e1e80152e4304d9182a357289189a8c5/FLAGc2a9a1b6b [2024-11-08 11:41:30,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b026921e/e1e80152e4304d9182a357289189a8c5 [2024-11-08 11:41:30,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:41:30,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:41:30,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:41:30,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:41:30,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:41:30,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:41:30" (1/1) ... [2024-11-08 11:41:30,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f725fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:30, skipping insertion in model container [2024-11-08 11:41:30,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:41:30" (1/1) ... [2024-11-08 11:41:30,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:41:30,438 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/Problem17_label46.c[1649,1662] [2024-11-08 11:41:30,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:41:30,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:41:30,846 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/Problem17_label46.c[1649,1662] [2024-11-08 11:41:31,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:41:31,070 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:41:31,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31 WrapperNode [2024-11-08 11:41:31,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:41:31,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:41:31,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:41:31,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:41:31,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,298 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-08 11:41:31,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:41:31,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:41:31,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:41:31,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:41:31,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,491 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]. [2024-11-08 11:41:31,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:41:31,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:41:31,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:41:31,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:41:31,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (1/1) ... [2024-11-08 11:41:31,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:41:31,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:41:31,708 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) [2024-11-08 11:41:31,710 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 [2024-11-08 11:41:31,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:41:31,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:41:31,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:41:31,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:41:31,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:41:31,792 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:41:34,114 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 11:41:34,114 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:41:34,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:41:34,141 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:41:34,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:41:34 BoogieIcfgContainer [2024-11-08 11:41:34,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:41:34,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:41:34,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:41:34,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:41:34,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:41:30" (1/3) ... [2024-11-08 11:41:34,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acccf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:41:34, skipping insertion in model container [2024-11-08 11:41:34,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:41:31" (2/3) ... [2024-11-08 11:41:34,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acccf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:41:34, skipping insertion in model container [2024-11-08 11:41:34,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:41:34" (3/3) ... [2024-11-08 11:41:34,147 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label46.c [2024-11-08 11:41:34,159 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:41:34,159 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:41:34,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:41:34,216 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;@1ba9c8e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:41:34,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:41:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 11:41:34,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:34,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:34,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:34,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1417350502, now seen corresponding path program 1 times [2024-11-08 11:41:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:34,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843364743] [2024-11-08 11:41:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:34,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:34,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:34,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843364743] [2024-11-08 11:41:34,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843364743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:34,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:34,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:41:34,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066720583] [2024-11-08 11:41:34,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:34,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:34,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:34,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:34,416 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 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 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:36,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:36,295 INFO L93 Difference]: Finished difference Result 1642 states and 3024 transitions. [2024-11-08 11:41:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:36,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-08 11:41:36,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:36,311 INFO L225 Difference]: With dead ends: 1642 [2024-11-08 11:41:36,311 INFO L226 Difference]: Without dead ends: 975 [2024-11-08 11:41:36,315 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 [2024-11-08 11:41:36,317 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 480 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:36,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 550 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:41:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-08 11:41:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 972. [2024-11-08 11:41:36,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.5077239958805355) internal successors, (1464), 971 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1464 transitions. [2024-11-08 11:41:36,394 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1464 transitions. Word has length 10 [2024-11-08 11:41:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:36,394 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1464 transitions. [2024-11-08 11:41:36,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1464 transitions. [2024-11-08 11:41:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 11:41:36,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:36,397 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 11:41:36,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:41:36,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:36,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:36,398 INFO L85 PathProgramCache]: Analyzing trace with hash -225164890, now seen corresponding path program 1 times [2024-11-08 11:41:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:36,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545606385] [2024-11-08 11:41:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:36,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:36,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545606385] [2024-11-08 11:41:36,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545606385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:36,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:36,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:36,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111566548] [2024-11-08 11:41:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:36,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:36,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:36,659 INFO L87 Difference]: Start difference. First operand 972 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:38,390 INFO L93 Difference]: Finished difference Result 2814 states and 4242 transitions. [2024-11-08 11:41:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:38,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 11:41:38,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:38,396 INFO L225 Difference]: With dead ends: 2814 [2024-11-08 11:41:38,396 INFO L226 Difference]: Without dead ends: 1844 [2024-11-08 11:41:38,397 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 [2024-11-08 11:41:38,398 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 481 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:38,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:41:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-08 11:41:38,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1842. [2024-11-08 11:41:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.3601303639326452) internal successors, (2504), 1841 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:38,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2504 transitions. [2024-11-08 11:41:38,425 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2504 transitions. Word has length 80 [2024-11-08 11:41:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:38,426 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2504 transitions. [2024-11-08 11:41:38,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2504 transitions. [2024-11-08 11:41:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 11:41:38,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:38,430 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 11:41:38,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:41:38,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:38,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1464739895, now seen corresponding path program 1 times [2024-11-08 11:41:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:38,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055140564] [2024-11-08 11:41:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055140564] [2024-11-08 11:41:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055140564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:38,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:38,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:41:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088903312] [2024-11-08 11:41:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:38,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:38,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:38,556 INFO L87 Difference]: Start difference. First operand 1842 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:40,092 INFO L93 Difference]: Finished difference Result 5395 states and 7326 transitions. [2024-11-08 11:41:40,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-08 11:41:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:40,100 INFO L225 Difference]: With dead ends: 5395 [2024-11-08 11:41:40,100 INFO L226 Difference]: Without dead ends: 2701 [2024-11-08 11:41:40,103 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 [2024-11-08 11:41:40,104 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:40,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:41:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2024-11-08 11:41:40,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2701. [2024-11-08 11:41:40,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 1.191851851851852) internal successors, (3218), 2700 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3218 transitions. [2024-11-08 11:41:40,138 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3218 transitions. Word has length 102 [2024-11-08 11:41:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:40,139 INFO L471 AbstractCegarLoop]: Abstraction has 2701 states and 3218 transitions. [2024-11-08 11:41:40,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3218 transitions. [2024-11-08 11:41:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 11:41:40,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:40,141 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:40,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:41:40,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:40,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1549840643, now seen corresponding path program 1 times [2024-11-08 11:41:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:40,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698342677] [2024-11-08 11:41:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:40,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:40,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698342677] [2024-11-08 11:41:40,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698342677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:40,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:40,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:40,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878007264] [2024-11-08 11:41:40,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:40,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:40,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:40,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:40,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:40,352 INFO L87 Difference]: Start difference. First operand 2701 states and 3218 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:41,538 INFO L93 Difference]: Finished difference Result 7108 states and 8598 transitions. [2024-11-08 11:41:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-08 11:41:41,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:41,548 INFO L225 Difference]: With dead ends: 7108 [2024-11-08 11:41:41,548 INFO L226 Difference]: Without dead ends: 4409 [2024-11-08 11:41:41,551 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 [2024-11-08 11:41:41,552 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:41,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:41:41,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2024-11-08 11:41:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4409. [2024-11-08 11:41:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 1.1705989110707804) internal successors, (5160), 4408 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 5160 transitions. [2024-11-08 11:41:41,597 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 5160 transitions. Word has length 162 [2024-11-08 11:41:41,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:41,597 INFO L471 AbstractCegarLoop]: Abstraction has 4409 states and 5160 transitions. [2024-11-08 11:41:41,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:41,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 5160 transitions. [2024-11-08 11:41:41,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 11:41:41,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:41,599 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:41,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:41:41,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:41,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:41,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2134418504, now seen corresponding path program 1 times [2024-11-08 11:41:41,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:41,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966827634] [2024-11-08 11:41:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:41,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 11:41:41,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:41,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966827634] [2024-11-08 11:41:41,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966827634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:41,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:41,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:41,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724908944] [2024-11-08 11:41:41,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:41,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:41,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:41,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:41,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:41,737 INFO L87 Difference]: Start difference. First operand 4409 states and 5160 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:42,974 INFO L93 Difference]: Finished difference Result 10936 states and 12970 transitions. [2024-11-08 11:41:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:42,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 164 [2024-11-08 11:41:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:42,989 INFO L225 Difference]: With dead ends: 10936 [2024-11-08 11:41:42,989 INFO L226 Difference]: Without dead ends: 6528 [2024-11-08 11:41:42,993 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 [2024-11-08 11:41:42,995 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 441 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:42,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:41:43,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2024-11-08 11:41:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 4382. [2024-11-08 11:41:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 1.1684546907098836) internal successors, (5119), 4381 states have internal predecessors, (5119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 5119 transitions. [2024-11-08 11:41:43,053 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 5119 transitions. Word has length 164 [2024-11-08 11:41:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:43,053 INFO L471 AbstractCegarLoop]: Abstraction has 4382 states and 5119 transitions. [2024-11-08 11:41:43,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 5119 transitions. [2024-11-08 11:41:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-08 11:41:43,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:43,056 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:43,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:41:43,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash 741644542, now seen corresponding path program 1 times [2024-11-08 11:41:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498578626] [2024-11-08 11:41:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:43,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498578626] [2024-11-08 11:41:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498578626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:41:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732849031] [2024-11-08 11:41:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:43,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:41:43,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:41:43,423 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) [2024-11-08 11:41:43,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:41:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:43,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:41:43,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:41:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:43,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:41:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:44,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732849031] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:41:44,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:41:44,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2024-11-08 11:41:44,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972603435] [2024-11-08 11:41:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:44,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:41:44,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:44,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:41:44,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:41:44,091 INFO L87 Difference]: Start difference. First operand 4382 states and 5119 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:46,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:46,317 INFO L93 Difference]: Finished difference Result 15171 states and 17882 transitions. [2024-11-08 11:41:46,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:41:46,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 230 [2024-11-08 11:41:46,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:46,343 INFO L225 Difference]: With dead ends: 15171 [2024-11-08 11:41:46,343 INFO L226 Difference]: Without dead ends: 10791 [2024-11-08 11:41:46,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:41:46,349 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 979 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 1021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:46,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 145 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:41:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2024-11-08 11:41:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 10789. [2024-11-08 11:41:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10789 states, 10788 states have (on average 1.1710233592880979) internal successors, (12633), 10788 states have internal predecessors, (12633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10789 states to 10789 states and 12633 transitions. [2024-11-08 11:41:46,499 INFO L78 Accepts]: Start accepts. Automaton has 10789 states and 12633 transitions. Word has length 230 [2024-11-08 11:41:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:46,499 INFO L471 AbstractCegarLoop]: Abstraction has 10789 states and 12633 transitions. [2024-11-08 11:41:46,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 10789 states and 12633 transitions. [2024-11-08 11:41:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-08 11:41:46,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:46,502 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:46,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 11:41:46,703 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,SelfDestructingSolverStorable5 [2024-11-08 11:41:46,703 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:46,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1310280645, now seen corresponding path program 1 times [2024-11-08 11:41:46,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:46,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320167936] [2024-11-08 11:41:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-08 11:41:46,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320167936] [2024-11-08 11:41:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320167936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260591696] [2024-11-08 11:41:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:46,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:46,839 INFO L87 Difference]: Start difference. First operand 10789 states and 12633 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:48,095 INFO L93 Difference]: Finished difference Result 23703 states and 27793 transitions. [2024-11-08 11:41:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 242 [2024-11-08 11:41:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:48,115 INFO L225 Difference]: With dead ends: 23703 [2024-11-08 11:41:48,115 INFO L226 Difference]: Without dead ends: 12491 [2024-11-08 11:41:48,123 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 [2024-11-08 11:41:48,124 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:48,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 842 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:41:48,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12491 states. [2024-11-08 11:41:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12491 to 12491. [2024-11-08 11:41:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12491 states, 12490 states have (on average 1.1501200960768614) internal successors, (14365), 12490 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12491 states to 12491 states and 14365 transitions. [2024-11-08 11:41:48,253 INFO L78 Accepts]: Start accepts. Automaton has 12491 states and 14365 transitions. Word has length 242 [2024-11-08 11:41:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:48,253 INFO L471 AbstractCegarLoop]: Abstraction has 12491 states and 14365 transitions. [2024-11-08 11:41:48,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 12491 states and 14365 transitions. [2024-11-08 11:41:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-08 11:41:48,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:48,257 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:48,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:41:48,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:48,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2057438562, now seen corresponding path program 1 times [2024-11-08 11:41:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:48,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32940876] [2024-11-08 11:41:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-08 11:41:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32940876] [2024-11-08 11:41:48,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32940876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:48,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103951297] [2024-11-08 11:41:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:48,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:48,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:48,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:48,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:48,406 INFO L87 Difference]: Start difference. First operand 12491 states and 14365 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:49,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:49,851 INFO L93 Difference]: Finished difference Result 30511 states and 34976 transitions. [2024-11-08 11:41:49,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:49,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 282 [2024-11-08 11:41:49,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:49,869 INFO L225 Difference]: With dead ends: 30511 [2024-11-08 11:41:49,869 INFO L226 Difference]: Without dead ends: 15866 [2024-11-08 11:41:49,878 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 [2024-11-08 11:41:49,878 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 534 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:49,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 640 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:41:49,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2024-11-08 11:41:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15010. [2024-11-08 11:41:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15010 states, 15009 states have (on average 1.1277233659804118) internal successors, (16926), 15009 states have internal predecessors, (16926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15010 states to 15010 states and 16926 transitions. [2024-11-08 11:41:50,018 INFO L78 Accepts]: Start accepts. Automaton has 15010 states and 16926 transitions. Word has length 282 [2024-11-08 11:41:50,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:50,019 INFO L471 AbstractCegarLoop]: Abstraction has 15010 states and 16926 transitions. [2024-11-08 11:41:50,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 15010 states and 16926 transitions. [2024-11-08 11:41:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-08 11:41:50,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:50,022 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:50,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:41:50,022 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:50,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1507858308, now seen corresponding path program 1 times [2024-11-08 11:41:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:50,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873114755] [2024-11-08 11:41:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-08 11:41:50,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:50,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873114755] [2024-11-08 11:41:50,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873114755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:50,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:50,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:50,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827810224] [2024-11-08 11:41:50,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:50,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:50,320 INFO L87 Difference]: Start difference. First operand 15010 states and 16926 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:51,612 INFO L93 Difference]: Finished difference Result 38116 states and 42953 transitions. [2024-11-08 11:41:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:51,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 304 [2024-11-08 11:41:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:51,643 INFO L225 Difference]: With dead ends: 38116 [2024-11-08 11:41:51,643 INFO L226 Difference]: Without dead ends: 23108 [2024-11-08 11:41:51,659 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 [2024-11-08 11:41:51,660 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 316 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:51,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 784 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:41:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23108 states. [2024-11-08 11:41:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23108 to 22244. [2024-11-08 11:41:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22244 states, 22243 states have (on average 1.1109562559007329) internal successors, (24711), 22243 states have internal predecessors, (24711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:51,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22244 states to 22244 states and 24711 transitions. [2024-11-08 11:41:51,864 INFO L78 Accepts]: Start accepts. Automaton has 22244 states and 24711 transitions. Word has length 304 [2024-11-08 11:41:51,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:51,865 INFO L471 AbstractCegarLoop]: Abstraction has 22244 states and 24711 transitions. [2024-11-08 11:41:51,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 22244 states and 24711 transitions. [2024-11-08 11:41:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-08 11:41:51,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:51,868 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:51,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:41:51,869 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:51,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1876690948, now seen corresponding path program 1 times [2024-11-08 11:41:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:51,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242231025] [2024-11-08 11:41:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-08 11:41:52,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:52,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242231025] [2024-11-08 11:41:52,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242231025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:52,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:52,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:52,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465365648] [2024-11-08 11:41:52,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:52,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:52,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:52,179 INFO L87 Difference]: Start difference. First operand 22244 states and 24711 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:53,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:53,298 INFO L93 Difference]: Finished difference Result 47458 states and 52810 transitions. [2024-11-08 11:41:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:53,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 309 [2024-11-08 11:41:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:53,323 INFO L225 Difference]: With dead ends: 47458 [2024-11-08 11:41:53,324 INFO L226 Difference]: Without dead ends: 24791 [2024-11-08 11:41:53,340 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 [2024-11-08 11:41:53,340 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 460 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:53,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 702 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:41:53,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24791 states. [2024-11-08 11:41:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24791 to 24785. [2024-11-08 11:41:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24785 states, 24784 states have (on average 1.107125564880568) internal successors, (27439), 24784 states have internal predecessors, (27439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24785 states to 24785 states and 27439 transitions. [2024-11-08 11:41:53,537 INFO L78 Accepts]: Start accepts. Automaton has 24785 states and 27439 transitions. Word has length 309 [2024-11-08 11:41:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:53,537 INFO L471 AbstractCegarLoop]: Abstraction has 24785 states and 27439 transitions. [2024-11-08 11:41:53,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 24785 states and 27439 transitions. [2024-11-08 11:41:53,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-08 11:41:53,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:53,542 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:53,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:41:53,542 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:53,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:53,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2084541808, now seen corresponding path program 1 times [2024-11-08 11:41:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:53,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098838248] [2024-11-08 11:41:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:53,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:41:53,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098838248] [2024-11-08 11:41:53,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098838248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:53,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:53,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:53,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473902829] [2024-11-08 11:41:53,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:53,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:41:53,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:41:53,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:41:53,809 INFO L87 Difference]: Start difference. First operand 24785 states and 27439 transitions. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:55,512 INFO L93 Difference]: Finished difference Result 63641 states and 70643 transitions. [2024-11-08 11:41:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:41:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2024-11-08 11:41:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:55,547 INFO L225 Difference]: With dead ends: 63641 [2024-11-08 11:41:55,548 INFO L226 Difference]: Without dead ends: 38008 [2024-11-08 11:41:55,567 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 [2024-11-08 11:41:55,568 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 555 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:55,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 293 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:41:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38008 states. [2024-11-08 11:41:55,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38008 to 37986. [2024-11-08 11:41:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37986 states, 37985 states have (on average 1.1046728971962616) internal successors, (41961), 37985 states have internal predecessors, (41961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:55,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37986 states to 37986 states and 41961 transitions. [2024-11-08 11:41:55,925 INFO L78 Accepts]: Start accepts. Automaton has 37986 states and 41961 transitions. Word has length 349 [2024-11-08 11:41:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:55,926 INFO L471 AbstractCegarLoop]: Abstraction has 37986 states and 41961 transitions. [2024-11-08 11:41:55,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 37986 states and 41961 transitions. [2024-11-08 11:41:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-08 11:41:55,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:55,931 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:41:55,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:41:55,932 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:55,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:55,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1238549206, now seen corresponding path program 1 times [2024-11-08 11:41:55,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:55,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650705215] [2024-11-08 11:41:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:55,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:56,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:56,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650705215] [2024-11-08 11:41:56,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650705215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:56,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:56,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:56,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936569751] [2024-11-08 11:41:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:56,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:56,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:56,144 INFO L87 Difference]: Start difference. First operand 37986 states and 41961 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:57,444 INFO L93 Difference]: Finished difference Result 85365 states and 94453 transitions. [2024-11-08 11:41:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:57,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 353 [2024-11-08 11:41:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:57,486 INFO L225 Difference]: With dead ends: 85365 [2024-11-08 11:41:57,487 INFO L226 Difference]: Without dead ends: 47381 [2024-11-08 11:41:57,512 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 [2024-11-08 11:41:57,512 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 337 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:57,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 652 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:41:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47381 states. [2024-11-08 11:41:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47381 to 46935. [2024-11-08 11:41:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46935 states, 46934 states have (on average 1.1060212212894702) internal successors, (51910), 46934 states have internal predecessors, (51910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46935 states to 46935 states and 51910 transitions. [2024-11-08 11:41:58,045 INFO L78 Accepts]: Start accepts. Automaton has 46935 states and 51910 transitions. Word has length 353 [2024-11-08 11:41:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:41:58,046 INFO L471 AbstractCegarLoop]: Abstraction has 46935 states and 51910 transitions. [2024-11-08 11:41:58,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 46935 states and 51910 transitions. [2024-11-08 11:41:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-08 11:41:58,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:41:58,058 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-08 11:41:58,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:41:58,059 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:41:58,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:41:58,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2012753800, now seen corresponding path program 1 times [2024-11-08 11:41:58,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:41:58,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724777894] [2024-11-08 11:41:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:41:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:41:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:41:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:41:58,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:41:58,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724777894] [2024-11-08 11:41:58,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724777894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:41:58,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:41:58,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:41:58,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268185755] [2024-11-08 11:41:58,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:41:58,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:41:58,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:41:58,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:41:58,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:41:58,423 INFO L87 Difference]: Start difference. First operand 46935 states and 51910 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:41:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:41:59,766 INFO L93 Difference]: Finished difference Result 104932 states and 116096 transitions. [2024-11-08 11:41:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:41:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 424 [2024-11-08 11:41:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:41:59,826 INFO L225 Difference]: With dead ends: 104932 [2024-11-08 11:41:59,826 INFO L226 Difference]: Without dead ends: 57999 [2024-11-08 11:41:59,853 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 [2024-11-08 11:41:59,854 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 305 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:41:59,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 327 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:41:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57999 states. [2024-11-08 11:42:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57999 to 54591. [2024-11-08 11:42:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54591 states, 54590 states have (on average 1.0996519509067595) internal successors, (60030), 54590 states have internal predecessors, (60030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54591 states to 54591 states and 60030 transitions. [2024-11-08 11:42:00,486 INFO L78 Accepts]: Start accepts. Automaton has 54591 states and 60030 transitions. Word has length 424 [2024-11-08 11:42:00,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:00,486 INFO L471 AbstractCegarLoop]: Abstraction has 54591 states and 60030 transitions. [2024-11-08 11:42:00,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 54591 states and 60030 transitions. [2024-11-08 11:42:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-08 11:42:00,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:00,495 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:42:00,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:42:00,495 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:00,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash 368948727, now seen corresponding path program 1 times [2024-11-08 11:42:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:00,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238558190] [2024-11-08 11:42:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:00,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 11:42:01,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238558190] [2024-11-08 11:42:01,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238558190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:01,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:01,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996371880] [2024-11-08 11:42:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:01,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:01,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:01,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:01,023 INFO L87 Difference]: Start difference. First operand 54591 states and 60030 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:02,400 INFO L93 Difference]: Finished difference Result 119829 states and 131917 transitions. [2024-11-08 11:42:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:02,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 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 473 [2024-11-08 11:42:02,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:02,463 INFO L225 Difference]: With dead ends: 119829 [2024-11-08 11:42:02,463 INFO L226 Difference]: Without dead ends: 65240 [2024-11-08 11:42:02,495 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 [2024-11-08 11:42:02,495 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 316 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:02,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 325 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65240 states. [2024-11-08 11:42:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65240 to 57569. [2024-11-08 11:42:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57569 states, 57568 states have (on average 1.097206781545303) internal successors, (63164), 57568 states have internal predecessors, (63164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57569 states to 57569 states and 63164 transitions. [2024-11-08 11:42:03,205 INFO L78 Accepts]: Start accepts. Automaton has 57569 states and 63164 transitions. Word has length 473 [2024-11-08 11:42:03,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:03,206 INFO L471 AbstractCegarLoop]: Abstraction has 57569 states and 63164 transitions. [2024-11-08 11:42:03,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 57569 states and 63164 transitions. [2024-11-08 11:42:03,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-08 11:42:03,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:03,218 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:03,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:42:03,219 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:03,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash -686282333, now seen corresponding path program 1 times [2024-11-08 11:42:03,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:03,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113712545] [2024-11-08 11:42:03,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:03,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-08 11:42:03,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113712545] [2024-11-08 11:42:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113712545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:03,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:03,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:42:03,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483482781] [2024-11-08 11:42:03,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:03,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:03,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:03,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:03,561 INFO L87 Difference]: Start difference. First operand 57569 states and 63164 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:04,326 INFO L93 Difference]: Finished difference Result 114273 states and 125404 transitions. [2024-11-08 11:42:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:04,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 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 484 [2024-11-08 11:42:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:04,470 INFO L225 Difference]: With dead ends: 114273 [2024-11-08 11:42:04,470 INFO L226 Difference]: Without dead ends: 56705 [2024-11-08 11:42:04,483 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 [2024-11-08 11:42:04,483 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 572 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:04,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 82 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:42:04,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56705 states. [2024-11-08 11:42:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56705 to 56701. [2024-11-08 11:42:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56701 states, 56700 states have (on average 1.0971428571428572) internal successors, (62208), 56700 states have internal predecessors, (62208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56701 states to 56701 states and 62208 transitions. [2024-11-08 11:42:05,069 INFO L78 Accepts]: Start accepts. Automaton has 56701 states and 62208 transitions. Word has length 484 [2024-11-08 11:42:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:05,070 INFO L471 AbstractCegarLoop]: Abstraction has 56701 states and 62208 transitions. [2024-11-08 11:42:05,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 56701 states and 62208 transitions. [2024-11-08 11:42:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-08 11:42:05,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:05,082 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:05,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:42:05,083 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:05,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash 144822832, now seen corresponding path program 1 times [2024-11-08 11:42:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:05,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267175158] [2024-11-08 11:42:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-08 11:42:05,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:05,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267175158] [2024-11-08 11:42:05,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267175158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:05,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:05,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:05,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587485690] [2024-11-08 11:42:05,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:05,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:05,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:05,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:05,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:05,452 INFO L87 Difference]: Start difference. First operand 56701 states and 62208 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:06,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:06,735 INFO L93 Difference]: Finished difference Result 122760 states and 134268 transitions. [2024-11-08 11:42:06,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:06,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 488 [2024-11-08 11:42:06,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:06,794 INFO L225 Difference]: With dead ends: 122760 [2024-11-08 11:42:06,794 INFO L226 Difference]: Without dead ends: 66061 [2024-11-08 11:42:06,826 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 [2024-11-08 11:42:06,826 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 333 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:06,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 119 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66061 states. [2024-11-08 11:42:07,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66061 to 52842. [2024-11-08 11:42:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52842 states, 52841 states have (on average 1.088756836547378) internal successors, (57531), 52841 states have internal predecessors, (57531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52842 states to 52842 states and 57531 transitions. [2024-11-08 11:42:07,503 INFO L78 Accepts]: Start accepts. Automaton has 52842 states and 57531 transitions. Word has length 488 [2024-11-08 11:42:07,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:07,503 INFO L471 AbstractCegarLoop]: Abstraction has 52842 states and 57531 transitions. [2024-11-08 11:42:07,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 52842 states and 57531 transitions. [2024-11-08 11:42:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-08 11:42:07,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:07,526 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:07,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:42:07,526 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:07,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash -439942955, now seen corresponding path program 1 times [2024-11-08 11:42:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057832647] [2024-11-08 11:42:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-08 11:42:08,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057832647] [2024-11-08 11:42:08,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057832647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:08,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:08,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:08,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360998505] [2024-11-08 11:42:08,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:08,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:08,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:08,090 INFO L87 Difference]: Start difference. First operand 52842 states and 57531 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:09,174 INFO L93 Difference]: Finished difference Result 108662 states and 118298 transitions. [2024-11-08 11:42:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:09,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 587 [2024-11-08 11:42:09,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:09,228 INFO L225 Difference]: With dead ends: 108662 [2024-11-08 11:42:09,228 INFO L226 Difference]: Without dead ends: 55397 [2024-11-08 11:42:09,261 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 [2024-11-08 11:42:09,261 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 453 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:09,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 651 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:42:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55397 states. [2024-11-08 11:42:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55397 to 51559. [2024-11-08 11:42:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51559 states, 51558 states have (on average 1.0857674851623413) internal successors, (55980), 51558 states have internal predecessors, (55980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51559 states to 51559 states and 55980 transitions. [2024-11-08 11:42:09,790 INFO L78 Accepts]: Start accepts. Automaton has 51559 states and 55980 transitions. Word has length 587 [2024-11-08 11:42:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:09,790 INFO L471 AbstractCegarLoop]: Abstraction has 51559 states and 55980 transitions. [2024-11-08 11:42:09,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 51559 states and 55980 transitions. [2024-11-08 11:42:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-08 11:42:09,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:09,805 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:09,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:42:09,805 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:09,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:09,805 INFO L85 PathProgramCache]: Analyzing trace with hash 678088477, now seen corresponding path program 1 times [2024-11-08 11:42:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:09,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407269751] [2024-11-08 11:42:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:09,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-08 11:42:10,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:10,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407269751] [2024-11-08 11:42:10,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407269751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:10,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:10,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:10,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845240797] [2024-11-08 11:42:10,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:10,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:10,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:10,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:10,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:10,168 INFO L87 Difference]: Start difference. First operand 51559 states and 55980 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:11,394 INFO L93 Difference]: Finished difference Result 104388 states and 113357 transitions. [2024-11-08 11:42:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:11,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 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 625 [2024-11-08 11:42:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:11,443 INFO L225 Difference]: With dead ends: 104388 [2024-11-08 11:42:11,443 INFO L226 Difference]: Without dead ends: 52831 [2024-11-08 11:42:11,459 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 [2024-11-08 11:42:11,459 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 477 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:11,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 614 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:42:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52831 states. [2024-11-08 11:42:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52831 to 52828. [2024-11-08 11:42:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52828 states, 52827 states have (on average 1.0782175781323944) internal successors, (56959), 52827 states have internal predecessors, (56959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52828 states to 52828 states and 56959 transitions. [2024-11-08 11:42:12,055 INFO L78 Accepts]: Start accepts. Automaton has 52828 states and 56959 transitions. Word has length 625 [2024-11-08 11:42:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:12,055 INFO L471 AbstractCegarLoop]: Abstraction has 52828 states and 56959 transitions. [2024-11-08 11:42:12,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 52828 states and 56959 transitions. [2024-11-08 11:42:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-08 11:42:12,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:12,077 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:12,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:42:12,077 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:12,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:12,078 INFO L85 PathProgramCache]: Analyzing trace with hash 46869252, now seen corresponding path program 1 times [2024-11-08 11:42:12,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:12,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937526806] [2024-11-08 11:42:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:12,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 794 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-08 11:42:12,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:12,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937526806] [2024-11-08 11:42:12,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937526806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:12,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:12,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:42:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254935764] [2024-11-08 11:42:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:12,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:12,687 INFO L87 Difference]: Start difference. First operand 52828 states and 56959 transitions. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:14,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:14,484 INFO L93 Difference]: Finished difference Result 124839 states and 134597 transitions. [2024-11-08 11:42:14,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:14,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 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 637 [2024-11-08 11:42:14,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:14,551 INFO L225 Difference]: With dead ends: 124839 [2024-11-08 11:42:14,552 INFO L226 Difference]: Without dead ends: 72013 [2024-11-08 11:42:14,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:14,589 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 781 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:14,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 129 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:42:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72013 states. [2024-11-08 11:42:15,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72013 to 69877. [2024-11-08 11:42:15,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69877 states, 69876 states have (on average 1.0778521953174194) internal successors, (75316), 69876 states have internal predecessors, (75316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69877 states to 69877 states and 75316 transitions. [2024-11-08 11:42:15,265 INFO L78 Accepts]: Start accepts. Automaton has 69877 states and 75316 transitions. Word has length 637 [2024-11-08 11:42:15,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:15,265 INFO L471 AbstractCegarLoop]: Abstraction has 69877 states and 75316 transitions. [2024-11-08 11:42:15,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:15,266 INFO L276 IsEmpty]: Start isEmpty. Operand 69877 states and 75316 transitions. [2024-11-08 11:42:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-08 11:42:15,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:15,282 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:15,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:42:15,282 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:15,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash -792180794, now seen corresponding path program 1 times [2024-11-08 11:42:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:15,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382407678] [2024-11-08 11:42:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-08 11:42:16,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:16,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382407678] [2024-11-08 11:42:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382407678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:16,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:16,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:16,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290922667] [2024-11-08 11:42:16,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:16,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:16,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:16,019 INFO L87 Difference]: Start difference. First operand 69877 states and 75316 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:17,421 INFO L93 Difference]: Finished difference Result 145291 states and 156721 transitions. [2024-11-08 11:42:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:17,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 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 656 [2024-11-08 11:42:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:17,492 INFO L225 Difference]: With dead ends: 145291 [2024-11-08 11:42:17,492 INFO L226 Difference]: Without dead ends: 75416 [2024-11-08 11:42:17,526 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 [2024-11-08 11:42:17,527 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 360 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:17,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 231 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75416 states. [2024-11-08 11:42:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75416 to 75412. [2024-11-08 11:42:18,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75412 states, 75411 states have (on average 1.073981249419846) internal successors, (80990), 75411 states have internal predecessors, (80990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:18,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75412 states to 75412 states and 80990 transitions. [2024-11-08 11:42:18,268 INFO L78 Accepts]: Start accepts. Automaton has 75412 states and 80990 transitions. Word has length 656 [2024-11-08 11:42:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:18,268 INFO L471 AbstractCegarLoop]: Abstraction has 75412 states and 80990 transitions. [2024-11-08 11:42:18,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 75412 states and 80990 transitions. [2024-11-08 11:42:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2024-11-08 11:42:18,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:18,292 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:42:18,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 11:42:18,292 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:18,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash -580776564, now seen corresponding path program 1 times [2024-11-08 11:42:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:18,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841644858] [2024-11-08 11:42:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-08 11:42:18,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:18,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841644858] [2024-11-08 11:42:18,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841644858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:18,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:18,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:18,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652333584] [2024-11-08 11:42:18,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:18,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:18,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:18,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:18,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:18,855 INFO L87 Difference]: Start difference. First operand 75412 states and 80990 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:20,111 INFO L93 Difference]: Finished difference Result 162774 states and 174842 transitions. [2024-11-08 11:42:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:20,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 744 [2024-11-08 11:42:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:20,194 INFO L225 Difference]: With dead ends: 162774 [2024-11-08 11:42:20,194 INFO L226 Difference]: Without dead ends: 87364 [2024-11-08 11:42:20,433 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 [2024-11-08 11:42:20,434 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 255 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:20,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 191 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:42:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87364 states. [2024-11-08 11:42:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87364 to 79676. [2024-11-08 11:42:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79676 states, 79675 states have (on average 1.0739253216190776) internal successors, (85565), 79675 states have internal predecessors, (85565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79676 states to 79676 states and 85565 transitions. [2024-11-08 11:42:21,573 INFO L78 Accepts]: Start accepts. Automaton has 79676 states and 85565 transitions. Word has length 744 [2024-11-08 11:42:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:21,573 INFO L471 AbstractCegarLoop]: Abstraction has 79676 states and 85565 transitions. [2024-11-08 11:42:21,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 79676 states and 85565 transitions. [2024-11-08 11:42:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2024-11-08 11:42:21,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:21,600 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:21,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 11:42:21,600 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:21,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:21,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1939600823, now seen corresponding path program 1 times [2024-11-08 11:42:21,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:21,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147345503] [2024-11-08 11:42:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:21,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:21,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-08 11:42:21,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:21,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147345503] [2024-11-08 11:42:21,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147345503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:21,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:21,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529019117] [2024-11-08 11:42:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:21,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:21,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:21,946 INFO L87 Difference]: Start difference. First operand 79676 states and 85565 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:23,393 INFO L93 Difference]: Finished difference Result 166604 states and 178965 transitions. [2024-11-08 11:42:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:23,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 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 762 [2024-11-08 11:42:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:23,478 INFO L225 Difference]: With dead ends: 166604 [2024-11-08 11:42:23,478 INFO L226 Difference]: Without dead ends: 86930 [2024-11-08 11:42:23,526 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 [2024-11-08 11:42:23,526 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 400 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:23,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 202 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:42:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86930 states. [2024-11-08 11:42:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86930 to 83088. [2024-11-08 11:42:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83088 states, 83087 states have (on average 1.0727791351234248) internal successors, (89134), 83087 states have internal predecessors, (89134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:24,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83088 states to 83088 states and 89134 transitions. [2024-11-08 11:42:24,343 INFO L78 Accepts]: Start accepts. Automaton has 83088 states and 89134 transitions. Word has length 762 [2024-11-08 11:42:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:24,343 INFO L471 AbstractCegarLoop]: Abstraction has 83088 states and 89134 transitions. [2024-11-08 11:42:24,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 83088 states and 89134 transitions. [2024-11-08 11:42:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2024-11-08 11:42:24,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:24,367 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:24,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 11:42:24,367 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:24,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1858694103, now seen corresponding path program 1 times [2024-11-08 11:42:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:24,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092306514] [2024-11-08 11:42:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:24,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 1032 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-08 11:42:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092306514] [2024-11-08 11:42:25,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092306514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:25,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:25,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:25,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707644409] [2024-11-08 11:42:25,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:25,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:25,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:25,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:25,109 INFO L87 Difference]: Start difference. First operand 83088 states and 89134 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:26,676 INFO L93 Difference]: Finished difference Result 170009 states and 182272 transitions. [2024-11-08 11:42:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:26,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 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 770 [2024-11-08 11:42:26,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:26,754 INFO L225 Difference]: With dead ends: 170009 [2024-11-08 11:42:26,754 INFO L226 Difference]: Without dead ends: 86923 [2024-11-08 11:42:26,768 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 [2024-11-08 11:42:26,769 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 295 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:26,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 235 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:42:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86923 states. [2024-11-08 11:42:27,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86923 to 82663. [2024-11-08 11:42:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82663 states, 82662 states have (on average 1.0720766494882776) internal successors, (88620), 82662 states have internal predecessors, (88620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82663 states to 82663 states and 88620 transitions. [2024-11-08 11:42:27,671 INFO L78 Accepts]: Start accepts. Automaton has 82663 states and 88620 transitions. Word has length 770 [2024-11-08 11:42:27,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:27,671 INFO L471 AbstractCegarLoop]: Abstraction has 82663 states and 88620 transitions. [2024-11-08 11:42:27,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand 82663 states and 88620 transitions. [2024-11-08 11:42:27,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-08 11:42:27,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:27,697 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:27,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 11:42:27,697 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:27,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:27,698 INFO L85 PathProgramCache]: Analyzing trace with hash 331354568, now seen corresponding path program 1 times [2024-11-08 11:42:27,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:27,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113327974] [2024-11-08 11:42:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-08 11:42:28,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113327974] [2024-11-08 11:42:28,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113327974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:28,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:28,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:42:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667150459] [2024-11-08 11:42:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:28,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:42:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:28,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:42:28,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:42:28,558 INFO L87 Difference]: Start difference. First operand 82663 states and 88620 transitions. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:30,054 INFO L93 Difference]: Finished difference Result 175557 states and 188049 transitions. [2024-11-08 11:42:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:42:30,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 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 788 [2024-11-08 11:42:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:30,152 INFO L225 Difference]: With dead ends: 175557 [2024-11-08 11:42:30,152 INFO L226 Difference]: Without dead ends: 92896 [2024-11-08 11:42:30,187 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 [2024-11-08 11:42:30,187 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 58 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:30,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 640 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:42:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92896 states. [2024-11-08 11:42:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92896 to 87332. [2024-11-08 11:42:31,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87332 states, 87331 states have (on average 1.0706736439523192) internal successors, (93503), 87331 states have internal predecessors, (93503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87332 states to 87332 states and 93503 transitions. [2024-11-08 11:42:31,463 INFO L78 Accepts]: Start accepts. Automaton has 87332 states and 93503 transitions. Word has length 788 [2024-11-08 11:42:31,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:31,463 INFO L471 AbstractCegarLoop]: Abstraction has 87332 states and 93503 transitions. [2024-11-08 11:42:31,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 87332 states and 93503 transitions. [2024-11-08 11:42:31,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-11-08 11:42:31,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:31,490 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:42:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 11:42:31,491 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:31,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1759449441, now seen corresponding path program 1 times [2024-11-08 11:42:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017151983] [2024-11-08 11:42:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:31,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 639 proven. 73 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2024-11-08 11:42:32,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:32,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017151983] [2024-11-08 11:42:32,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017151983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:32,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025997529] [2024-11-08 11:42:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:42:32,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:42:32,226 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) [2024-11-08 11:42:32,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:42:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:32,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:42:32,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:42:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 639 proven. 73 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2024-11-08 11:42:32,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:42:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 712 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2024-11-08 11:42:32,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025997529] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:42:32,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:42:32,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-08 11:42:32,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999453147] [2024-11-08 11:42:32,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:32,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:32,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:32,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:32,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:32,754 INFO L87 Difference]: Start difference. First operand 87332 states and 93503 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:34,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:34,840 INFO L93 Difference]: Finished difference Result 189581 states and 203267 transitions. [2024-11-08 11:42:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:34,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 811 [2024-11-08 11:42:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:34,940 INFO L225 Difference]: With dead ends: 189581 [2024-11-08 11:42:34,940 INFO L226 Difference]: Without dead ends: 102251 [2024-11-08 11:42:34,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1623 GetRequests, 1619 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:42:34,979 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 809 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:34,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 136 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:42:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102251 states. [2024-11-08 11:42:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102251 to 99274. [2024-11-08 11:42:35,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99274 states, 99273 states have (on average 1.0730007151995005) internal successors, (106520), 99273 states have internal predecessors, (106520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99274 states to 99274 states and 106520 transitions. [2024-11-08 11:42:36,113 INFO L78 Accepts]: Start accepts. Automaton has 99274 states and 106520 transitions. Word has length 811 [2024-11-08 11:42:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:36,114 INFO L471 AbstractCegarLoop]: Abstraction has 99274 states and 106520 transitions. [2024-11-08 11:42:36,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand 99274 states and 106520 transitions. [2024-11-08 11:42:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2024-11-08 11:42:36,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:36,162 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:42:36,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:42:36,363 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,SelfDestructingSolverStorable24 [2024-11-08 11:42:36,363 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:36,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1107197470, now seen corresponding path program 1 times [2024-11-08 11:42:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:36,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543387216] [2024-11-08 11:42:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:36,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 1464 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2024-11-08 11:42:37,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:37,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543387216] [2024-11-08 11:42:37,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543387216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:37,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:37,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:42:37,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416648195] [2024-11-08 11:42:37,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:37,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:37,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:37,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:37,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:37,155 INFO L87 Difference]: Start difference. First operand 99274 states and 106520 transitions. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:42:38,971 INFO L93 Difference]: Finished difference Result 206668 states and 221493 transitions. [2024-11-08 11:42:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:42:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 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 909 [2024-11-08 11:42:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:42:39,095 INFO L225 Difference]: With dead ends: 206668 [2024-11-08 11:42:39,096 INFO L226 Difference]: Without dead ends: 107396 [2024-11-08 11:42:39,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:39,161 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 762 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:42:39,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 200 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:42:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107396 states. [2024-11-08 11:42:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107396 to 94154. [2024-11-08 11:42:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94154 states, 94153 states have (on average 1.0697375548309667) internal successors, (100719), 94153 states have internal predecessors, (100719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94154 states to 94154 states and 100719 transitions. [2024-11-08 11:42:40,523 INFO L78 Accepts]: Start accepts. Automaton has 94154 states and 100719 transitions. Word has length 909 [2024-11-08 11:42:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:42:40,524 INFO L471 AbstractCegarLoop]: Abstraction has 94154 states and 100719 transitions. [2024-11-08 11:42:40,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:42:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 94154 states and 100719 transitions. [2024-11-08 11:42:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2024-11-08 11:42:40,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:42:40,555 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:42:40,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 11:42:40,555 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:42:40,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:42:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1016245605, now seen corresponding path program 1 times [2024-11-08 11:42:40,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:42:40,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942111356] [2024-11-08 11:42:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:42:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:42:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:42:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1964 backedges. 1482 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-08 11:42:40,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:42:40,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942111356] [2024-11-08 11:42:40,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942111356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:42:40,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:42:40,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:42:40,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294339826] [2024-11-08 11:42:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:42:40,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:42:40,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:42:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:42:40,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:42:40,947 INFO L87 Difference]: Start difference. First operand 94154 states and 100719 transitions. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)