/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 04:10:17,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 04:10:17,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 04:10:17,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 04:10:17,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 04:10:17,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 04:10:17,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 04:10:17,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 04:10:17,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 04:10:17,364 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 04:10:17,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 04:10:17,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 04:10:17,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 04:10:17,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 04:10:17,367 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 04:10:17,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 04:10:17,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 04:10:17,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 04:10:17,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 04:10:17,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 04:10:17,368 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 04:10:17,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 04:10:17,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 04:10:17,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 04:10:17,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 04:10:17,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 04:10:17,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 04:10:17,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 04:10:17,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 04:10:17,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 04:10:17,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 04:10:17,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 04:10:17,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 04:10:17,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 04:10:17,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 04:10:17,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 04:10:17,580 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 04:10:17,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label00.c [2023-12-19 04:10:18,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 04:10:18,858 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 04:10:18,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label00.c [2023-12-19 04:10:18,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982cce9f5/cee6bcde990341ec8a78ca0c12efe0ad/FLAG4e0506c5d [2023-12-19 04:10:18,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982cce9f5/cee6bcde990341ec8a78ca0c12efe0ad [2023-12-19 04:10:18,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 04:10:18,895 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 04:10:18,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 04:10:18,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 04:10:18,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 04:10:18,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:10:18" (1/1) ... [2023-12-19 04:10:18,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc7e272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:18, skipping insertion in model container [2023-12-19 04:10:18,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:10:18" (1/1) ... [2023-12-19 04:10:18,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 04:10:19,092 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label00.c[1053,1066] [2023-12-19 04:10:19,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 04:10:19,451 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 04:10:19,461 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label00.c[1053,1066] [2023-12-19 04:10:19,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 04:10:19,610 INFO L206 MainTranslator]: Completed translation [2023-12-19 04:10:19,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19 WrapperNode [2023-12-19 04:10:19,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 04:10:19,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 04:10:19,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 04:10:19,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 04:10:19,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,783 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2023-12-19 04:10:19,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 04:10:19,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 04:10:19,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 04:10:19,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 04:10:19,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,922 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]. [2023-12-19 04:10:19,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:19,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 04:10:20,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 04:10:20,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 04:10:20,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 04:10:20,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (1/1) ... [2023-12-19 04:10:20,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 04:10:20,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:20,106 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) [2023-12-19 04:10:20,114 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 [2023-12-19 04:10:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 04:10:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 04:10:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 04:10:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 04:10:20,176 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 04:10:20,177 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 04:10:22,110 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 04:10:22,154 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 04:10:22,154 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 04:10:22,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:10:22 BoogieIcfgContainer [2023-12-19 04:10:22,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 04:10:22,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 04:10:22,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 04:10:22,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 04:10:22,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:10:18" (1/3) ... [2023-12-19 04:10:22,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8e93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:10:22, skipping insertion in model container [2023-12-19 04:10:22,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:10:19" (2/3) ... [2023-12-19 04:10:22,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef8e93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:10:22, skipping insertion in model container [2023-12-19 04:10:22,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:10:22" (3/3) ... [2023-12-19 04:10:22,161 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label00.c [2023-12-19 04:10:22,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 04:10:22,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 04:10:22,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 04:10:22,235 INFO L357 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, mHoare=true, 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;@ad2c936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 04:10:22,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 04:10:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-19 04:10:22,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:22,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-19 04:10:22,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:22,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1781815696, now seen corresponding path program 1 times [2023-12-19 04:10:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421392665] [2023-12-19 04:10:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:22,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:22,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421392665] [2023-12-19 04:10:22,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421392665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:22,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:22,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:10:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270330779] [2023-12-19 04:10:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:22,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:22,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:22,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:22,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:22,410 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 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 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:24,129 INFO L93 Difference]: Finished difference Result 1029 states and 1981 transitions. [2023-12-19 04:10:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:24,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-19 04:10:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:24,156 INFO L225 Difference]: With dead ends: 1029 [2023-12-19 04:10:24,156 INFO L226 Difference]: Without dead ends: 664 [2023-12-19 04:10:24,159 INFO L412 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 [2023-12-19 04:10:24,161 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 313 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:24,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 318 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 04:10:24,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-12-19 04:10:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 662. [2023-12-19 04:10:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.4826021180030258) internal successors, (980), 661 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 980 transitions. [2023-12-19 04:10:24,208 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 980 transitions. Word has length 5 [2023-12-19 04:10:24,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:24,209 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 980 transitions. [2023-12-19 04:10:24,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 980 transitions. [2023-12-19 04:10:24,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-19 04:10:24,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:24,211 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:24,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 04:10:24,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:24,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1239293441, now seen corresponding path program 1 times [2023-12-19 04:10:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:24,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734427423] [2023-12-19 04:10:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:24,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:24,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:24,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734427423] [2023-12-19 04:10:24,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734427423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:24,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:24,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:10:24,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685538929] [2023-12-19 04:10:24,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:24,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:24,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:24,614 INFO L87 Difference]: Start difference. First operand 662 states and 980 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:25,852 INFO L93 Difference]: Finished difference Result 1623 states and 2314 transitions. [2023-12-19 04:10:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:25,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-12-19 04:10:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:25,860 INFO L225 Difference]: With dead ends: 1623 [2023-12-19 04:10:25,860 INFO L226 Difference]: Without dead ends: 962 [2023-12-19 04:10:25,861 INFO L412 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 [2023-12-19 04:10:25,862 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:25,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 335 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:10:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-12-19 04:10:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-12-19 04:10:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 1.3631633714880333) internal successors, (1310), 961 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1310 transitions. [2023-12-19 04:10:25,898 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1310 transitions. Word has length 70 [2023-12-19 04:10:25,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:25,898 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1310 transitions. [2023-12-19 04:10:25,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:25,898 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1310 transitions. [2023-12-19 04:10:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-19 04:10:25,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:25,900 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:25,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 04:10:25,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:25,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1955604122, now seen corresponding path program 1 times [2023-12-19 04:10:25,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808743815] [2023-12-19 04:10:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808743815] [2023-12-19 04:10:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808743815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:26,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:26,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 04:10:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833055808] [2023-12-19 04:10:26,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 04:10:26,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 04:10:26,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 04:10:26,094 INFO L87 Difference]: Start difference. First operand 962 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:27,563 INFO L93 Difference]: Finished difference Result 2239 states and 3196 transitions. [2023-12-19 04:10:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:10:27,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-19 04:10:27,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:27,567 INFO L225 Difference]: With dead ends: 2239 [2023-12-19 04:10:27,567 INFO L226 Difference]: Without dead ends: 1577 [2023-12-19 04:10:27,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 04:10:27,573 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 939 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:27,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 317 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 04:10:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2023-12-19 04:10:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1265. [2023-12-19 04:10:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3053797468354431) internal successors, (1650), 1264 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1650 transitions. [2023-12-19 04:10:27,595 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1650 transitions. Word has length 75 [2023-12-19 04:10:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:27,599 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 1650 transitions. [2023-12-19 04:10:27,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1650 transitions. [2023-12-19 04:10:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 04:10:27,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:27,608 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:27,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 04:10:27,608 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:27,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1446418672, now seen corresponding path program 1 times [2023-12-19 04:10:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747229688] [2023-12-19 04:10:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:27,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:27,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747229688] [2023-12-19 04:10:27,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747229688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:27,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:27,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239751842] [2023-12-19 04:10:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:27,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:10:27,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:27,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:10:27,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:10:27,717 INFO L87 Difference]: Start difference. First operand 1265 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:30,367 INFO L93 Difference]: Finished difference Result 4669 states and 6173 transitions. [2023-12-19 04:10:30,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:10:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-19 04:10:30,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:30,375 INFO L225 Difference]: With dead ends: 4669 [2023-12-19 04:10:30,375 INFO L226 Difference]: Without dead ends: 3405 [2023-12-19 04:10:30,376 INFO L412 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 [2023-12-19 04:10:30,377 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 560 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:30,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 343 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 04:10:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-12-19 04:10:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3380. [2023-12-19 04:10:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 1.237348327907665) internal successors, (4181), 3379 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4181 transitions. [2023-12-19 04:10:30,417 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4181 transitions. Word has length 96 [2023-12-19 04:10:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:30,417 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 4181 transitions. [2023-12-19 04:10:30,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4181 transitions. [2023-12-19 04:10:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-19 04:10:30,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:30,419 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:30,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 04:10:30,419 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:30,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -115110364, now seen corresponding path program 1 times [2023-12-19 04:10:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888755626] [2023-12-19 04:10:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-19 04:10:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888755626] [2023-12-19 04:10:30,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888755626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:30,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:30,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:10:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316948416] [2023-12-19 04:10:30,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:30,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:30,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:30,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:30,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:30,576 INFO L87 Difference]: Start difference. First operand 3380 states and 4181 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:31,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:31,734 INFO L93 Difference]: Finished difference Result 8562 states and 10759 transitions. [2023-12-19 04:10:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:31,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2023-12-19 04:10:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:31,749 INFO L225 Difference]: With dead ends: 8562 [2023-12-19 04:10:31,749 INFO L226 Difference]: Without dead ends: 5482 [2023-12-19 04:10:31,753 INFO L412 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 [2023-12-19 04:10:31,754 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:31,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 335 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 04:10:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2023-12-19 04:10:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5477. [2023-12-19 04:10:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 1.1694667640613587) internal successors, (6404), 5476 states have internal predecessors, (6404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6404 transitions. [2023-12-19 04:10:31,825 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 6404 transitions. Word has length 162 [2023-12-19 04:10:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:31,826 INFO L495 AbstractCegarLoop]: Abstraction has 5477 states and 6404 transitions. [2023-12-19 04:10:31,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 6404 transitions. [2023-12-19 04:10:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-19 04:10:31,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:31,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:31,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 04:10:31,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:31,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1002172678, now seen corresponding path program 1 times [2023-12-19 04:10:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:31,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271913960] [2023-12-19 04:10:31,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:31,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:32,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:32,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271913960] [2023-12-19 04:10:32,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271913960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:32,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:32,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:10:32,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046894293] [2023-12-19 04:10:32,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:32,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:32,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:32,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:32,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:32,105 INFO L87 Difference]: Start difference. First operand 5477 states and 6404 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:33,238 INFO L93 Difference]: Finished difference Result 10654 states and 12496 transitions. [2023-12-19 04:10:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:33,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2023-12-19 04:10:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:33,250 INFO L225 Difference]: With dead ends: 10654 [2023-12-19 04:10:33,250 INFO L226 Difference]: Without dead ends: 5477 [2023-12-19 04:10:33,255 INFO L412 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 [2023-12-19 04:10:33,256 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 143 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:33,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 357 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 04:10:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2023-12-19 04:10:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5477. [2023-12-19 04:10:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 1.1683710737764792) internal successors, (6398), 5476 states have internal predecessors, (6398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6398 transitions. [2023-12-19 04:10:33,328 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 6398 transitions. Word has length 163 [2023-12-19 04:10:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:33,328 INFO L495 AbstractCegarLoop]: Abstraction has 5477 states and 6398 transitions. [2023-12-19 04:10:33,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 6398 transitions. [2023-12-19 04:10:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-19 04:10:33,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:33,330 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:33,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 04:10:33,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:33,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:33,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1012938695, now seen corresponding path program 1 times [2023-12-19 04:10:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:33,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117112190] [2023-12-19 04:10:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:33,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:33,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:33,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117112190] [2023-12-19 04:10:33,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117112190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:33,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:33,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621320551] [2023-12-19 04:10:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:33,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:10:33,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:33,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:10:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:10:33,473 INFO L87 Difference]: Start difference. First operand 5477 states and 6398 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:35,911 INFO L93 Difference]: Finished difference Result 12183 states and 14318 transitions. [2023-12-19 04:10:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:10:35,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2023-12-19 04:10:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:35,928 INFO L225 Difference]: With dead ends: 12183 [2023-12-19 04:10:35,928 INFO L226 Difference]: Without dead ends: 7006 [2023-12-19 04:10:35,932 INFO L412 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 [2023-12-19 04:10:35,933 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 478 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:35,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 352 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 04:10:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2023-12-19 04:10:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 5785. [2023-12-19 04:10:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5784 states have (on average 1.1799792531120332) internal successors, (6825), 5784 states have internal predecessors, (6825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 6825 transitions. [2023-12-19 04:10:36,004 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 6825 transitions. Word has length 181 [2023-12-19 04:10:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:36,004 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 6825 transitions. [2023-12-19 04:10:36,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 6825 transitions. [2023-12-19 04:10:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-19 04:10:36,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:36,006 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 04:10:36,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 04:10:36,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:36,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:36,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1877061572, now seen corresponding path program 1 times [2023-12-19 04:10:36,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:36,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6390588] [2023-12-19 04:10:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:36,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6390588] [2023-12-19 04:10:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6390588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:36,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:36,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100894128] [2023-12-19 04:10:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:36,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:10:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:36,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:10:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:10:36,240 INFO L87 Difference]: Start difference. First operand 5785 states and 6825 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:38,617 INFO L93 Difference]: Finished difference Result 13093 states and 15498 transitions. [2023-12-19 04:10:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:10:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-12-19 04:10:38,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:38,636 INFO L225 Difference]: With dead ends: 13093 [2023-12-19 04:10:38,636 INFO L226 Difference]: Without dead ends: 7608 [2023-12-19 04:10:38,642 INFO L412 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 [2023-12-19 04:10:38,643 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 427 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:38,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 358 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-19 04:10:38,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2023-12-19 04:10:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 6085. [2023-12-19 04:10:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 1.1750493096646943) internal successors, (7149), 6084 states have internal predecessors, (7149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:38,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 7149 transitions. [2023-12-19 04:10:38,733 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 7149 transitions. Word has length 238 [2023-12-19 04:10:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:38,733 INFO L495 AbstractCegarLoop]: Abstraction has 6085 states and 7149 transitions. [2023-12-19 04:10:38,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:38,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 7149 transitions. [2023-12-19 04:10:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-19 04:10:38,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:38,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:38,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 04:10:38,736 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:38,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:38,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1899765632, now seen corresponding path program 1 times [2023-12-19 04:10:38,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:38,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306418574] [2023-12-19 04:10:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:38,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-19 04:10:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:38,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306418574] [2023-12-19 04:10:38,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306418574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:38,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:38,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801651478] [2023-12-19 04:10:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:38,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:38,902 INFO L87 Difference]: Start difference. First operand 6085 states and 7149 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:40,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:40,185 INFO L93 Difference]: Finished difference Result 14272 states and 17119 transitions. [2023-12-19 04:10:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:40,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 292 [2023-12-19 04:10:40,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:40,203 INFO L225 Difference]: With dead ends: 14272 [2023-12-19 04:10:40,203 INFO L226 Difference]: Without dead ends: 8487 [2023-12-19 04:10:40,208 INFO L412 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 [2023-12-19 04:10:40,209 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 310 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:40,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 668 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:10:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8487 states. [2023-12-19 04:10:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8487 to 8483. [2023-12-19 04:10:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8483 states, 8482 states have (on average 1.1478424899787787) internal successors, (9736), 8482 states have internal predecessors, (9736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:40,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8483 states to 8483 states and 9736 transitions. [2023-12-19 04:10:40,292 INFO L78 Accepts]: Start accepts. Automaton has 8483 states and 9736 transitions. Word has length 292 [2023-12-19 04:10:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:40,292 INFO L495 AbstractCegarLoop]: Abstraction has 8483 states and 9736 transitions. [2023-12-19 04:10:40,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 8483 states and 9736 transitions. [2023-12-19 04:10:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-19 04:10:40,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:40,296 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:40,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 04:10:40,296 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:40,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:40,296 INFO L85 PathProgramCache]: Analyzing trace with hash 586879821, now seen corresponding path program 1 times [2023-12-19 04:10:40,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:40,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532188004] [2023-12-19 04:10:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:40,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-19 04:10:40,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:40,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532188004] [2023-12-19 04:10:40,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532188004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:40,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:40,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:40,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761176799] [2023-12-19 04:10:40,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:40,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:40,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:40,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:40,484 INFO L87 Difference]: Start difference. First operand 8483 states and 9736 transitions. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:41,824 INFO L93 Difference]: Finished difference Result 19662 states and 22940 transitions. [2023-12-19 04:10:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:41,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 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 351 [2023-12-19 04:10:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:41,841 INFO L225 Difference]: With dead ends: 19662 [2023-12-19 04:10:41,841 INFO L226 Difference]: Without dead ends: 11479 [2023-12-19 04:10:41,849 INFO L412 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 [2023-12-19 04:10:41,850 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 321 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:41,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 632 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 04:10:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11479 states. [2023-12-19 04:10:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11479 to 10582. [2023-12-19 04:10:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10582 states, 10581 states have (on average 1.1332577261128438) internal successors, (11991), 10581 states have internal predecessors, (11991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:42,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10582 states to 10582 states and 11991 transitions. [2023-12-19 04:10:42,021 INFO L78 Accepts]: Start accepts. Automaton has 10582 states and 11991 transitions. Word has length 351 [2023-12-19 04:10:42,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:42,021 INFO L495 AbstractCegarLoop]: Abstraction has 10582 states and 11991 transitions. [2023-12-19 04:10:42,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10582 states and 11991 transitions. [2023-12-19 04:10:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-12-19 04:10:42,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:42,025 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:42,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 04:10:42,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:42,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:42,026 INFO L85 PathProgramCache]: Analyzing trace with hash -746149381, now seen corresponding path program 1 times [2023-12-19 04:10:42,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:42,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868805025] [2023-12-19 04:10:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:42,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:42,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:42,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868805025] [2023-12-19 04:10:42,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868805025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:42,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494392147] [2023-12-19 04:10:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:42,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:42,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:42,572 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) [2023-12-19 04:10:42,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 04:10:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:42,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 04:10:42,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:43,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:10:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:45,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494392147] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:45,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 04:10:45,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2023-12-19 04:10:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585697702] [2023-12-19 04:10:45,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:45,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 04:10:45,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:45,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 04:10:45,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-12-19 04:10:45,852 INFO L87 Difference]: Start difference. First operand 10582 states and 11991 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:51,412 INFO L93 Difference]: Finished difference Result 26293 states and 30186 transitions. [2023-12-19 04:10:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 04:10:51,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2023-12-19 04:10:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:51,438 INFO L225 Difference]: With dead ends: 26293 [2023-12-19 04:10:51,438 INFO L226 Difference]: Without dead ends: 16011 [2023-12-19 04:10:51,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-12-19 04:10:51,450 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 792 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 1456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1456 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:51,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 113 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1456 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-19 04:10:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16011 states. [2023-12-19 04:10:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16011 to 11483. [2023-12-19 04:10:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11483 states, 11482 states have (on average 1.1698310398885212) internal successors, (13432), 11482 states have internal predecessors, (13432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11483 states to 11483 states and 13432 transitions. [2023-12-19 04:10:51,672 INFO L78 Accepts]: Start accepts. Automaton has 11483 states and 13432 transitions. Word has length 352 [2023-12-19 04:10:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:51,672 INFO L495 AbstractCegarLoop]: Abstraction has 11483 states and 13432 transitions. [2023-12-19 04:10:51,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 11483 states and 13432 transitions. [2023-12-19 04:10:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-19 04:10:51,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:51,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:51,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 04:10:51,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 04:10:51,882 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:51,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash -253465236, now seen corresponding path program 1 times [2023-12-19 04:10:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:51,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59957860] [2023-12-19 04:10:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:52,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:52,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59957860] [2023-12-19 04:10:52,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59957860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:52,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:52,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989444723] [2023-12-19 04:10:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:52,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:52,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:52,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:52,064 INFO L87 Difference]: Start difference. First operand 11483 states and 13432 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) 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) [2023-12-19 04:10:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:53,496 INFO L93 Difference]: Finished difference Result 25665 states and 30680 transitions. [2023-12-19 04:10:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:53,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) 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 368 [2023-12-19 04:10:53,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:53,515 INFO L225 Difference]: With dead ends: 25665 [2023-12-19 04:10:53,515 INFO L226 Difference]: Without dead ends: 14482 [2023-12-19 04:10:53,525 INFO L412 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 [2023-12-19 04:10:53,526 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 246 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:53,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 620 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 04:10:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14482 states. [2023-12-19 04:10:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14482 to 13577. [2023-12-19 04:10:53,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13577 states, 13576 states have (on average 1.1612404242781378) internal successors, (15765), 13576 states have internal predecessors, (15765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13577 states to 13577 states and 15765 transitions. [2023-12-19 04:10:53,719 INFO L78 Accepts]: Start accepts. Automaton has 13577 states and 15765 transitions. Word has length 368 [2023-12-19 04:10:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:53,720 INFO L495 AbstractCegarLoop]: Abstraction has 13577 states and 15765 transitions. [2023-12-19 04:10:53,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) 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) [2023-12-19 04:10:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13577 states and 15765 transitions. [2023-12-19 04:10:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2023-12-19 04:10:53,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:53,726 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:53,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 04:10:53,726 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:53,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:53,726 INFO L85 PathProgramCache]: Analyzing trace with hash -675376714, now seen corresponding path program 1 times [2023-12-19 04:10:53,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:53,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354583811] [2023-12-19 04:10:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:53,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-19 04:10:53,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:53,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354583811] [2023-12-19 04:10:53,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354583811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:53,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:53,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:53,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517883043] [2023-12-19 04:10:53,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:53,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:53,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:53,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:53,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:53,936 INFO L87 Difference]: Start difference. First operand 13577 states and 15765 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:55,503 INFO L93 Difference]: Finished difference Result 34646 states and 40387 transitions. [2023-12-19 04:10:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 414 [2023-12-19 04:10:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:55,536 INFO L225 Difference]: With dead ends: 34646 [2023-12-19 04:10:55,536 INFO L226 Difference]: Without dead ends: 21369 [2023-12-19 04:10:55,551 INFO L412 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 [2023-12-19 04:10:55,552 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 321 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:55,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 619 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 04:10:55,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21369 states. [2023-12-19 04:10:55,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21369 to 21055. [2023-12-19 04:10:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21055 states, 21054 states have (on average 1.1328963617364871) internal successors, (23852), 21054 states have internal predecessors, (23852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:55,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21055 states to 21055 states and 23852 transitions. [2023-12-19 04:10:55,762 INFO L78 Accepts]: Start accepts. Automaton has 21055 states and 23852 transitions. Word has length 414 [2023-12-19 04:10:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:55,763 INFO L495 AbstractCegarLoop]: Abstraction has 21055 states and 23852 transitions. [2023-12-19 04:10:55,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:55,763 INFO L276 IsEmpty]: Start isEmpty. Operand 21055 states and 23852 transitions. [2023-12-19 04:10:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-19 04:10:55,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:55,766 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:10:55,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 04:10:55,767 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:55,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1037854379, now seen corresponding path program 1 times [2023-12-19 04:10:55,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:55,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674712211] [2023-12-19 04:10:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 4 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:56,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:56,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674712211] [2023-12-19 04:10:56,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674712211] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:56,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426926469] [2023-12-19 04:10:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:56,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:56,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:56,346 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) [2023-12-19 04:10:56,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 04:10:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:56,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 04:10:56,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 4 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:58,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:10:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 85 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:10:59,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426926469] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 04:10:59,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 04:10:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2023-12-19 04:10:59,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943331021] [2023-12-19 04:10:59,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 04:10:59,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 04:10:59,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 04:10:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-12-19 04:10:59,447 INFO L87 Difference]: Start difference. First operand 21055 states and 23852 transitions. Second operand has 13 states, 13 states have (on average 85.07692307692308) internal successors, (1106), 12 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:11:12,103 INFO L93 Difference]: Finished difference Result 85653 states and 97311 transitions. [2023-12-19 04:11:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 04:11:12,104 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 85.07692307692308) internal successors, (1106), 12 states have internal predecessors, (1106), 0 states have call successors, (0), 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 459 [2023-12-19 04:11:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:11:12,183 INFO L225 Difference]: With dead ends: 85653 [2023-12-19 04:11:12,183 INFO L226 Difference]: Without dead ends: 64898 [2023-12-19 04:11:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 928 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2023-12-19 04:11:12,201 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 4970 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 8137 mSolverCounterSat, 4133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 12270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4133 IncrementalHoareTripleChecker+Valid, 8137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-19 04:11:12,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 319 Invalid, 12270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4133 Valid, 8137 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-19 04:11:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64898 states. [2023-12-19 04:11:12,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64898 to 28248. [2023-12-19 04:11:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 28247 states have (on average 1.1451835593160336) internal successors, (32348), 28247 states have internal predecessors, (32348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 32348 transitions. [2023-12-19 04:11:12,706 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 32348 transitions. Word has length 459 [2023-12-19 04:11:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:11:12,707 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 32348 transitions. [2023-12-19 04:11:12,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 85.07692307692308) internal successors, (1106), 12 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 32348 transitions. [2023-12-19 04:11:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2023-12-19 04:11:12,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:11:12,711 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:11:12,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 04:11:12,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-19 04:11:12,917 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:11:12,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:11:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2087458615, now seen corresponding path program 1 times [2023-12-19 04:11:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:11:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986262103] [2023-12-19 04:11:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:11:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 83 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:11:13,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:11:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986262103] [2023-12-19 04:11:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986262103] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:11:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227841020] [2023-12-19 04:11:13,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:13,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:11:13,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:11:13,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:11:13,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 04:11:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:13,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 04:11:13,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:11:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 04:11:23,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:11:23,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227841020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:11:23,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:11:23,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 04:11:23,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076865699] [2023-12-19 04:11:23,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:11:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:11:23,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:11:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:11:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:11:23,588 INFO L87 Difference]: Start difference. First operand 28248 states and 32348 transitions. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:11:25,009 INFO L93 Difference]: Finished difference Result 68158 states and 78339 transitions. [2023-12-19 04:11:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:11:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 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 482 [2023-12-19 04:11:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:11:25,057 INFO L225 Difference]: With dead ends: 68158 [2023-12-19 04:11:25,057 INFO L226 Difference]: Without dead ends: 40210 [2023-12-19 04:11:25,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:11:25,081 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 278 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:11:25,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 189 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:11:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40210 states. [2023-12-19 04:11:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40210 to 31233. [2023-12-19 04:11:25,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31233 states, 31232 states have (on average 1.1592597336065573) internal successors, (36206), 31232 states have internal predecessors, (36206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31233 states to 31233 states and 36206 transitions. [2023-12-19 04:11:25,442 INFO L78 Accepts]: Start accepts. Automaton has 31233 states and 36206 transitions. Word has length 482 [2023-12-19 04:11:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:11:25,443 INFO L495 AbstractCegarLoop]: Abstraction has 31233 states and 36206 transitions. [2023-12-19 04:11:25,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 31233 states and 36206 transitions. [2023-12-19 04:11:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2023-12-19 04:11:25,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:11:25,447 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:11:25,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 04:11:25,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:11:25,655 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:11:25,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:11:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1022333099, now seen corresponding path program 1 times [2023-12-19 04:11:25,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:11:25,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715955215] [2023-12-19 04:11:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:25,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:11:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 344 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 04:11:26,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:11:26,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715955215] [2023-12-19 04:11:26,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715955215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:11:26,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262692014] [2023-12-19 04:11:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:26,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:11:26,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:11:26,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:11:26,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 04:11:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:26,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 04:11:26,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:11:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-19 04:11:26,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:11:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262692014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:11:26,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:11:26,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 04:11:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643921466] [2023-12-19 04:11:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:11:26,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:11:26,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:11:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:11:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:11:26,835 INFO L87 Difference]: Start difference. First operand 31233 states and 36206 transitions. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:11:28,651 INFO L93 Difference]: Finished difference Result 63962 states and 74046 transitions. [2023-12-19 04:11:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:11:28,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 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 490 [2023-12-19 04:11:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:11:28,684 INFO L225 Difference]: With dead ends: 63962 [2023-12-19 04:11:28,684 INFO L226 Difference]: Without dead ends: 32431 [2023-12-19 04:11:28,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:11:28,691 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 316 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:11:28,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 387 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 04:11:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32431 states. [2023-12-19 04:11:28,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32431 to 32130. [2023-12-19 04:11:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32130 states, 32129 states have (on average 1.1291979208814467) internal successors, (36280), 32129 states have internal predecessors, (36280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32130 states to 32130 states and 36280 transitions. [2023-12-19 04:11:28,991 INFO L78 Accepts]: Start accepts. Automaton has 32130 states and 36280 transitions. Word has length 490 [2023-12-19 04:11:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:11:28,991 INFO L495 AbstractCegarLoop]: Abstraction has 32130 states and 36280 transitions. [2023-12-19 04:11:28,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 32130 states and 36280 transitions. [2023-12-19 04:11:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-19 04:11:28,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:11:28,995 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:11:29,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 04:11:29,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 04:11:29,200 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:11:29,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:11:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash -916863801, now seen corresponding path program 1 times [2023-12-19 04:11:29,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:11:29,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055678941] [2023-12-19 04:11:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:29,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:11:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-12-19 04:11:29,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:11:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055678941] [2023-12-19 04:11:29,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055678941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:11:29,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:11:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:11:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341766196] [2023-12-19 04:11:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:11:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:11:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:11:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:11:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:11:29,384 INFO L87 Difference]: Start difference. First operand 32130 states and 36280 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:11:30,577 INFO L93 Difference]: Finished difference Result 64256 states and 72587 transitions. [2023-12-19 04:11:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:11:30,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 506 [2023-12-19 04:11:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:11:30,610 INFO L225 Difference]: With dead ends: 64256 [2023-12-19 04:11:30,610 INFO L226 Difference]: Without dead ends: 32426 [2023-12-19 04:11:30,629 INFO L412 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 [2023-12-19 04:11:30,630 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 464 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 04:11:30,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 69 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 04:11:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32426 states. [2023-12-19 04:11:31,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32426 to 32126. [2023-12-19 04:11:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32126 states, 32125 states have (on average 1.1291206225680934) internal successors, (36273), 32125 states have internal predecessors, (36273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32126 states to 32126 states and 36273 transitions. [2023-12-19 04:11:31,296 INFO L78 Accepts]: Start accepts. Automaton has 32126 states and 36273 transitions. Word has length 506 [2023-12-19 04:11:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:11:31,296 INFO L495 AbstractCegarLoop]: Abstraction has 32126 states and 36273 transitions. [2023-12-19 04:11:31,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 32126 states and 36273 transitions. [2023-12-19 04:11:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2023-12-19 04:11:31,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:11:31,301 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2023-12-19 04:11:31,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 04:11:31,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:11:31,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:11:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1484004811, now seen corresponding path program 1 times [2023-12-19 04:11:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:11:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442502563] [2023-12-19 04:11:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:11:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-19 04:11:31,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:11:31,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442502563] [2023-12-19 04:11:31,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442502563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:11:31,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:11:31,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:11:31,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315328053] [2023-12-19 04:11:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:11:31,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:11:31,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:11:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:11:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:11:31,468 INFO L87 Difference]: Start difference. First operand 32126 states and 36273 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:11:32,709 INFO L93 Difference]: Finished difference Result 67839 states and 76674 transitions. [2023-12-19 04:11:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:11:32,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 526 [2023-12-19 04:11:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:11:32,746 INFO L225 Difference]: With dead ends: 67839 [2023-12-19 04:11:32,747 INFO L226 Difference]: Without dead ends: 35415 [2023-12-19 04:11:32,763 INFO L412 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 [2023-12-19 04:11:32,764 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 242 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 04:11:32,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 325 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 04:11:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35415 states. [2023-12-19 04:11:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35415 to 29431. [2023-12-19 04:11:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29431 states, 29430 states have (on average 1.1117567108392796) internal successors, (32719), 29430 states have internal predecessors, (32719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29431 states to 29431 states and 32719 transitions. [2023-12-19 04:11:33,095 INFO L78 Accepts]: Start accepts. Automaton has 29431 states and 32719 transitions. Word has length 526 [2023-12-19 04:11:33,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:11:33,096 INFO L495 AbstractCegarLoop]: Abstraction has 29431 states and 32719 transitions. [2023-12-19 04:11:33,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:11:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand 29431 states and 32719 transitions. [2023-12-19 04:11:33,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2023-12-19 04:11:33,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:11:33,101 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 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] [2023-12-19 04:11:33,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 04:11:33,101 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:11:33,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:11:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash -191820470, now seen corresponding path program 1 times [2023-12-19 04:11:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:11:33,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11072357] [2023-12-19 04:11:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:11:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 118 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:11:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:11:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11072357] [2023-12-19 04:11:33,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11072357] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:11:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948904101] [2023-12-19 04:11:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:11:33,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:11:33,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:11:33,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:11:33,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 04:11:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:11:34,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 04:11:34,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:11:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-12-19 04:11:41,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:11:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948904101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:11:41,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:11:41,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 04:11:41,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103900] [2023-12-19 04:11:41,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:11:41,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:11:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:11:41,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:11:41,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:11:41,551 INFO L87 Difference]: Start difference. First operand 29431 states and 32719 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:12:07,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:14,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:18,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:24,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:29,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:33,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:39,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:46,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:51,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:55,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:12:57,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:03,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:07,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:12,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:16,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:20,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:25,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:30,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:34,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:38,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:42,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-19 04:13:42,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:13:42,930 INFO L93 Difference]: Finished difference Result 72399 states and 81293 transitions. [2023-12-19 04:13:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:13:42,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 580 [2023-12-19 04:13:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:13:42,991 INFO L225 Difference]: With dead ends: 72399 [2023-12-19 04:13:42,991 INFO L226 Difference]: Without dead ends: 43268 [2023-12-19 04:13:43,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:13:43,012 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 407 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 29 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.0s IncrementalHoareTripleChecker+Time [2023-12-19 04:13:43,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 663 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1042 Invalid, 20 Unknown, 0 Unchecked, 121.0s Time] [2023-12-19 04:13:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43268 states. [2023-12-19 04:13:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43268 to 42658. [2023-12-19 04:13:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42658 states, 42657 states have (on average 1.1207304779989216) internal successors, (47807), 42657 states have internal predecessors, (47807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42658 states to 42658 states and 47807 transitions. [2023-12-19 04:13:43,554 INFO L78 Accepts]: Start accepts. Automaton has 42658 states and 47807 transitions. Word has length 580 [2023-12-19 04:13:43,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:13:43,554 INFO L495 AbstractCegarLoop]: Abstraction has 42658 states and 47807 transitions. [2023-12-19 04:13:43,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand 42658 states and 47807 transitions. [2023-12-19 04:13:43,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2023-12-19 04:13:43,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:13:43,561 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:13:43,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 04:13:43,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:13:43,764 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:13:43,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:13:43,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1388371174, now seen corresponding path program 1 times [2023-12-19 04:13:43,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:13:43,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409676315] [2023-12-19 04:13:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:13:43,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:13:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:13:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 04:13:44,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:13:44,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409676315] [2023-12-19 04:13:44,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409676315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:13:44,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:13:44,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:13:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102870878] [2023-12-19 04:13:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:13:44,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:13:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:13:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:13:44,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:13:44,073 INFO L87 Difference]: Start difference. First operand 42658 states and 47807 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:13:45,790 INFO L93 Difference]: Finished difference Result 99674 states and 111732 transitions. [2023-12-19 04:13:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:13:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 [2023-12-19 04:13:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:13:45,850 INFO L225 Difference]: With dead ends: 99674 [2023-12-19 04:13:45,850 INFO L226 Difference]: Without dead ends: 51934 [2023-12-19 04:13:45,867 INFO L412 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 [2023-12-19 04:13:45,867 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 113 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:13:45,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 498 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:13:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51934 states. [2023-12-19 04:13:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51934 to 46536. [2023-12-19 04:13:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46536 states, 46535 states have (on average 1.0762436875470076) internal successors, (50083), 46535 states have internal predecessors, (50083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46536 states to 46536 states and 50083 transitions. [2023-12-19 04:13:46,420 INFO L78 Accepts]: Start accepts. Automaton has 46536 states and 50083 transitions. Word has length 625 [2023-12-19 04:13:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:13:46,420 INFO L495 AbstractCegarLoop]: Abstraction has 46536 states and 50083 transitions. [2023-12-19 04:13:46,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:46,420 INFO L276 IsEmpty]: Start isEmpty. Operand 46536 states and 50083 transitions. [2023-12-19 04:13:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2023-12-19 04:13:46,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:13:46,425 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:13:46,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 04:13:46,425 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:13:46,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:13:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1753950921, now seen corresponding path program 1 times [2023-12-19 04:13:46,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:13:46,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601136850] [2023-12-19 04:13:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:13:46,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:13:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:13:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2023-12-19 04:13:46,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:13:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601136850] [2023-12-19 04:13:46,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601136850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:13:46,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:13:46,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:13:46,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866841632] [2023-12-19 04:13:46,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:13:46,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:13:46,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:13:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:13:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:13:46,846 INFO L87 Difference]: Start difference. First operand 46536 states and 50083 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:13:48,420 INFO L93 Difference]: Finished difference Result 99338 states and 106806 transitions. [2023-12-19 04:13:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:13:48,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 635 [2023-12-19 04:13:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:13:48,479 INFO L225 Difference]: With dead ends: 99338 [2023-12-19 04:13:48,480 INFO L226 Difference]: Without dead ends: 51009 [2023-12-19 04:13:48,509 INFO L412 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 [2023-12-19 04:13:48,510 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 315 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:13:48,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 540 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:13:48,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51009 states. [2023-12-19 04:13:48,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51009 to 38435. [2023-12-19 04:13:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38435 states, 38434 states have (on average 1.0731643857001614) internal successors, (41246), 38434 states have internal predecessors, (41246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38435 states to 38435 states and 41246 transitions. [2023-12-19 04:13:49,053 INFO L78 Accepts]: Start accepts. Automaton has 38435 states and 41246 transitions. Word has length 635 [2023-12-19 04:13:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:13:49,053 INFO L495 AbstractCegarLoop]: Abstraction has 38435 states and 41246 transitions. [2023-12-19 04:13:49,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:13:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 38435 states and 41246 transitions. [2023-12-19 04:13:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2023-12-19 04:13:49,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:13:49,058 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:13:49,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 04:13:49,058 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:13:49,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:13:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1209784925, now seen corresponding path program 1 times [2023-12-19 04:13:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:13:49,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988604744] [2023-12-19 04:13:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:13:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:13:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:13:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 365 proven. 188 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-19 04:13:49,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:13:49,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988604744] [2023-12-19 04:13:49,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988604744] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:13:49,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052496574] [2023-12-19 04:13:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:13:49,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:13:49,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:13:49,844 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:13:49,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 04:13:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:13:50,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 04:13:50,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:13:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 365 proven. 188 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-19 04:13:52,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:13:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 365 proven. 188 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-19 04:13:55,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052496574] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 04:13:55,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 04:13:55,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-19 04:13:55,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936367961] [2023-12-19 04:13:55,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 04:13:55,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 04:13:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:13:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 04:13:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-19 04:13:55,942 INFO L87 Difference]: Start difference. First operand 38435 states and 41246 transitions. Second operand has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 8 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:14:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:14:02,588 INFO L93 Difference]: Finished difference Result 92328 states and 98700 transitions. [2023-12-19 04:14:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 04:14:02,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 8 states have internal predecessors, (1420), 0 states have call successors, (0), 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 646 [2023-12-19 04:14:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:14:02,653 INFO L225 Difference]: With dead ends: 92328 [2023-12-19 04:14:02,654 INFO L226 Difference]: Without dead ends: 54193 [2023-12-19 04:14:02,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1306 GetRequests, 1287 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2023-12-19 04:14:02,683 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1294 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 5495 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 6184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 5495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-19 04:14:02,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 194 Invalid, 6184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 5495 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-19 04:14:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54193 states. [2023-12-19 04:14:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54193 to 42026. [2023-12-19 04:14:03,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42026 states, 42025 states have (on average 1.0725520523497918) internal successors, (45074), 42025 states have internal predecessors, (45074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:14:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42026 states to 42026 states and 45074 transitions. [2023-12-19 04:14:03,252 INFO L78 Accepts]: Start accepts. Automaton has 42026 states and 45074 transitions. Word has length 646 [2023-12-19 04:14:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:14:03,253 INFO L495 AbstractCegarLoop]: Abstraction has 42026 states and 45074 transitions. [2023-12-19 04:14:03,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 8 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:14:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 42026 states and 45074 transitions. [2023-12-19 04:14:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2023-12-19 04:14:03,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:14:03,260 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 04:14:03,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 04:14:03,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:14:03,467 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:14:03,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:14:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1721484748, now seen corresponding path program 1 times [2023-12-19 04:14:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:14:03,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681427428] [2023-12-19 04:14:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:14:03,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:14:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:14:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 11 proven. 464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:14:04,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:14:04,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681427428] [2023-12-19 04:14:04,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681427428] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:14:04,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008268817] [2023-12-19 04:14:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:14:04,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:14:04,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:14:04,261 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:14:04,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 04:14:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:14:04,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 04:14:04,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:14:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 4 proven. 471 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:14:05,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:18:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:18:35,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008268817] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 04:18:35,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 04:18:35,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 13 [2023-12-19 04:18:35,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411798518] [2023-12-19 04:18:35,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:18:35,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 04:18:35,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:18:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 04:18:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=99, Unknown=0, NotChecked=0, Total=182 [2023-12-19 04:18:35,936 INFO L87 Difference]: Start difference. First operand 42026 states and 45074 transitions. Second operand has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:18:41,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:18:45,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:18:49,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:18:53,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:18:57,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:02,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:06,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:10,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:14,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:18,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:22,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:26,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:30,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:34,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:38,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:42,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:46,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:50,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:54,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:57,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:19:58,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:02,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:06,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:11,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:15,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:19,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:23,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:27,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:31,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:35,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:39,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:43,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:47,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:49,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:53,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:20:57,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:01,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:06,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:10,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:14,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:18,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:22,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:26,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:30,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:34,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:39,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:43,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:47,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:51,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:21:55,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:00,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:01,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:02,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:06,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:10,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:15,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:19,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:23,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:27,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:31,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:35,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:39,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:42,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:46,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:50,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:54,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:22:58,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:02,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:06,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:10,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:14,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:18,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:22,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:26,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:30,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:34,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:38,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:43,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:47,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:51,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:55,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:23:59,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:03,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:07,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:11,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:15,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:19,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:23,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:27,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:29,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-19 04:24:33,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1] Received shutdown request... [2023-12-19 04:24:36,753 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 04:24:36,772 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 04:24:37,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 04:24:37,973 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 04:24:37,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-19 04:24:37,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1295 GetRequests, 1177 SyntacticMatches, 106 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 266.4s TimeCoverageRelationStatistics Valid=83, Invalid=99, Unknown=0, NotChecked=0, Total=182 [2023-12-19 04:24:37,998 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 490 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 274 mSolverCounterUnsat, 84 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 355.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 84 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 357.9s IncrementalHoareTripleChecker+Time [2023-12-19 04:24:37,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 67 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1532 Invalid, 84 Unknown, 0 Unchecked, 357.9s Time] [2023-12-19 04:24:37,999 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 04:24:37,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-19 04:24:38,000 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-19 04:24:38,005 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:24:38,008 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 04:24:38,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:24:38 BoogieIcfgContainer [2023-12-19 04:24:38,014 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 04:24:38,014 INFO L158 Benchmark]: Toolchain (without parser) took 859119.15ms. Allocated memory was 316.7MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 261.6MB in the beginning and 954.5MB in the end (delta: -692.9MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-19 04:24:38,014 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 219.2MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 04:24:38,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.95ms. Allocated memory is still 316.7MB. Free memory was 261.3MB in the beginning and 245.3MB in the end (delta: 16.0MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2023-12-19 04:24:38,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 172.59ms. Allocated memory is still 316.7MB. Free memory was 245.3MB in the beginning and 206.5MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-19 04:24:38,015 INFO L158 Benchmark]: Boogie Preprocessor took 272.01ms. Allocated memory is still 316.7MB. Free memory was 206.5MB in the beginning and 243.1MB in the end (delta: -36.5MB). Peak memory consumption was 66.2MB. Max. memory is 8.0GB. [2023-12-19 04:24:38,015 INFO L158 Benchmark]: RCFGBuilder took 2097.69ms. Allocated memory was 316.7MB in the beginning and 487.6MB in the end (delta: 170.9MB). Free memory was 243.1MB in the beginning and 385.2MB in the end (delta: -142.1MB). Peak memory consumption was 138.4MB. Max. memory is 8.0GB. [2023-12-19 04:24:38,015 INFO L158 Benchmark]: TraceAbstraction took 855857.56ms. Allocated memory was 487.6MB in the beginning and 2.6GB in the end (delta: 2.1GB). Free memory was 384.6MB in the beginning and 954.5MB in the end (delta: -569.9MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-19 04:24:38,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 219.2MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 712.95ms. Allocated memory is still 316.7MB. Free memory was 261.3MB in the beginning and 245.3MB in the end (delta: 16.0MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 172.59ms. Allocated memory is still 316.7MB. Free memory was 245.3MB in the beginning and 206.5MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 272.01ms. Allocated memory is still 316.7MB. Free memory was 206.5MB in the beginning and 243.1MB in the end (delta: -36.5MB). Peak memory consumption was 66.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2097.69ms. Allocated memory was 316.7MB in the beginning and 487.6MB in the end (delta: 170.9MB). Free memory was 243.1MB in the beginning and 385.2MB in the end (delta: -142.1MB). Peak memory consumption was 138.4MB. Max. memory is 8.0GB. * TraceAbstraction took 855857.56ms. Allocated memory was 487.6MB in the beginning and 2.6GB in the end (delta: 2.1GB). Free memory was 384.6MB in the beginning and 954.5MB in the end (delta: -569.9MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 35). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 855.8s, OverallIterations: 23, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 538.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 mSolverCounterUnknown, 14233 SdHoareTripleChecker+Valid, 528.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14233 mSDsluCounter, 8618 SdHoareTripleChecker+Invalid, 518.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1356 mSDsCounter, 10415 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38633 IncrementalHoareTripleChecker+Invalid, 49153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10415 mSolverCounterUnsat, 7262 mSDtfsCounter, 38633 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5843 GetRequests, 5644 SyntacticMatches, 106 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 268.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46536occurred in iteration=20, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 92697 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 307.6s InterpolantComputationTime, 12017 NumberOfCodeBlocks, 12017 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 14086 ConstructedInterpolants, 738 QuantifiedInterpolants, 119646 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4472 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 34 InterpolantComputations, 21 PerfectInterpolantSequences, 6117/9043 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown