/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/bitvector/s3_srvr_1a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 21:55:36,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 21:55:36,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 21:55:36,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 21:55:36,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 21:55:36,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 21:55:36,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 21:55:36,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 21:55:36,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 21:55:36,775 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 21:55:36,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 21:55:36,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 21:55:36,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 21:55:36,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 21:55:36,777 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 21:55:36,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 21:55:36,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 21:55:36,777 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 21:55:36,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 21:55:36,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 21:55:36,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 21:55:36,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 21:55:36,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 21:55:36,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 21:55:36,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 21:55:36,780 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 21:55:36,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 21:55:36,780 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 21:55:36,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 21:55:36,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 21:55:36,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 21:55:36,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 21:55:36,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 21:55:36,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 21:55:36,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 21:55:36,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 21:55:36,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 21:55:36,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 21:55:36,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 21:55:36,995 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 21:55:36,996 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 21:55:36,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2023-12-18 21:55:38,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 21:55:38,158 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 21:55:38,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2023-12-18 21:55:38,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc0ec880/e875f3dfb5ee427b97edbc5fcce9801b/FLAGa4c680880 [2023-12-18 21:55:38,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc0ec880/e875f3dfb5ee427b97edbc5fcce9801b [2023-12-18 21:55:38,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 21:55:38,191 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 21:55:38,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 21:55:38,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 21:55:38,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 21:55:38,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6af4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38, skipping insertion in model container [2023-12-18 21:55:38,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 21:55:38,408 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-12-18 21:55:38,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 21:55:38,431 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 21:55:38,494 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-12-18 21:55:38,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 21:55:38,505 INFO L206 MainTranslator]: Completed translation [2023-12-18 21:55:38,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38 WrapperNode [2023-12-18 21:55:38,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 21:55:38,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 21:55:38,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 21:55:38,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 21:55:38,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,561 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 646 [2023-12-18 21:55:38,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 21:55:38,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 21:55:38,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 21:55:38,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 21:55:38,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,584 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,593 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]. [2023-12-18 21:55:38,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 21:55:38,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 21:55:38,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 21:55:38,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 21:55:38,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (1/1) ... [2023-12-18 21:55:38,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 21:55:38,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 21:55:38,647 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) [2023-12-18 21:55:38,676 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 [2023-12-18 21:55:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 21:55:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 21:55:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 21:55:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 21:55:38,735 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 21:55:38,737 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 21:55:38,747 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-18 21:55:39,179 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2023-12-18 21:55:39,179 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2023-12-18 21:55:39,179 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 21:55:39,225 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 21:55:39,225 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-18 21:55:39,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 09:55:39 BoogieIcfgContainer [2023-12-18 21:55:39,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 21:55:39,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 21:55:39,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 21:55:39,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 21:55:39,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 09:55:38" (1/3) ... [2023-12-18 21:55:39,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a94a0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 09:55:39, skipping insertion in model container [2023-12-18 21:55:39,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 09:55:38" (2/3) ... [2023-12-18 21:55:39,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a94a0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 09:55:39, skipping insertion in model container [2023-12-18 21:55:39,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 09:55:39" (3/3) ... [2023-12-18 21:55:39,238 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2023-12-18 21:55:39,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 21:55:39,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 21:55:39,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 21:55:39,312 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;@1cd84f81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 21:55:39,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 21:55:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-18 21:55:39,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:39,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:39,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:39,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1415729344, now seen corresponding path program 1 times [2023-12-18 21:55:39,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621828538] [2023-12-18 21:55:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 21:55:39,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:39,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621828538] [2023-12-18 21:55:39,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621828538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:39,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:39,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 21:55:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912116460] [2023-12-18 21:55:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:39,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:39,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:39,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:39,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:39,658 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 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 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:39,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:39,812 INFO L93 Difference]: Finished difference Result 313 states and 562 transitions. [2023-12-18 21:55:39,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:39,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-12-18 21:55:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:39,819 INFO L225 Difference]: With dead ends: 313 [2023-12-18 21:55:39,820 INFO L226 Difference]: Without dead ends: 161 [2023-12-18 21:55:39,822 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 [2023-12-18 21:55:39,824 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:39,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 409 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-18 21:55:39,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2023-12-18 21:55:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 252 transitions. [2023-12-18 21:55:39,870 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 252 transitions. Word has length 43 [2023-12-18 21:55:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:39,870 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 252 transitions. [2023-12-18 21:55:39,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 252 transitions. [2023-12-18 21:55:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-18 21:55:39,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:39,876 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-18 21:55:39,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 21:55:39,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:39,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:39,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1586399182, now seen corresponding path program 1 times [2023-12-18 21:55:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472533914] [2023-12-18 21:55:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:39,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 21:55:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472533914] [2023-12-18 21:55:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472533914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326177473] [2023-12-18 21:55:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:39,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:39,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:39,948 INFO L87 Difference]: Start difference. First operand 158 states and 252 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,046 INFO L93 Difference]: Finished difference Result 329 states and 528 transitions. [2023-12-18 21:55:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-12-18 21:55:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,047 INFO L225 Difference]: With dead ends: 329 [2023-12-18 21:55:40,048 INFO L226 Difference]: Without dead ends: 182 [2023-12-18 21:55:40,048 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 [2023-12-18 21:55:40,064 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 14 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 355 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-18 21:55:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2023-12-18 21:55:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 177 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) [2023-12-18 21:55:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2023-12-18 21:55:40,071 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 58 [2023-12-18 21:55:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,071 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2023-12-18 21:55:40,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2023-12-18 21:55:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-18 21:55:40,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-18 21:55:40,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 21:55:40,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1249860790, now seen corresponding path program 1 times [2023-12-18 21:55:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072172374] [2023-12-18 21:55:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 21:55:40,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072172374] [2023-12-18 21:55:40,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072172374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987944119] [2023-12-18 21:55:40,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,160 INFO L87 Difference]: Start difference. First operand 178 states and 277 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,269 INFO L93 Difference]: Finished difference Result 390 states and 617 transitions. [2023-12-18 21:55:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 78 [2023-12-18 21:55:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,271 INFO L225 Difference]: With dead ends: 390 [2023-12-18 21:55:40,271 INFO L226 Difference]: Without dead ends: 223 [2023-12-18 21:55:40,271 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 [2023-12-18 21:55:40,272 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 352 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-18 21:55:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-12-18 21:55:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2023-12-18 21:55:40,279 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 78 [2023-12-18 21:55:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,279 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2023-12-18 21:55:40,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2023-12-18 21:55:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-18 21:55:40,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-18 21:55:40,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 21:55:40,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1673507512, now seen corresponding path program 1 times [2023-12-18 21:55:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772341325] [2023-12-18 21:55:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 21:55:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772341325] [2023-12-18 21:55:40,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772341325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068985843] [2023-12-18 21:55:40,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,317 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,401 INFO L93 Difference]: Finished difference Result 454 states and 676 transitions. [2023-12-18 21:55:40,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 78 [2023-12-18 21:55:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,403 INFO L225 Difference]: With dead ends: 454 [2023-12-18 21:55:40,403 INFO L226 Difference]: Without dead ends: 246 [2023-12-18 21:55:40,403 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 [2023-12-18 21:55:40,404 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 17 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 371 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-18 21:55:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 241. [2023-12-18 21:55:40,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 240 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 350 transitions. [2023-12-18 21:55:40,426 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 350 transitions. Word has length 78 [2023-12-18 21:55:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,427 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 350 transitions. [2023-12-18 21:55:40,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 350 transitions. [2023-12-18 21:55:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-18 21:55:40,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:40,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 21:55:40,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1699464270, now seen corresponding path program 1 times [2023-12-18 21:55:40,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110321565] [2023-12-18 21:55:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-18 21:55:40,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110321565] [2023-12-18 21:55:40,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110321565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555529090] [2023-12-18 21:55:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,493 INFO L87 Difference]: Start difference. First operand 241 states and 350 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2023-12-18 21:55:40,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,588 INFO L93 Difference]: Finished difference Result 515 states and 762 transitions. [2023-12-18 21:55:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 98 [2023-12-18 21:55:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,591 INFO L225 Difference]: With dead ends: 515 [2023-12-18 21:55:40,591 INFO L226 Difference]: Without dead ends: 285 [2023-12-18 21:55:40,592 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 [2023-12-18 21:55:40,595 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 45 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 370 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:40,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-18 21:55:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 265. [2023-12-18 21:55:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4356060606060606) internal successors, (379), 264 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 379 transitions. [2023-12-18 21:55:40,611 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 379 transitions. Word has length 98 [2023-12-18 21:55:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,611 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 379 transitions. [2023-12-18 21:55:40,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2023-12-18 21:55:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 379 transitions. [2023-12-18 21:55:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-18 21:55:40,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-18 21:55:40,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 21:55:40,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash 967987460, now seen corresponding path program 1 times [2023-12-18 21:55:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602868668] [2023-12-18 21:55:40,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-18 21:55:40,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602868668] [2023-12-18 21:55:40,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602868668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935980257] [2023-12-18 21:55:40,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,735 INFO L87 Difference]: Start difference. First operand 265 states and 379 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,760 INFO L93 Difference]: Finished difference Result 767 states and 1093 transitions. [2023-12-18 21:55:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 117 [2023-12-18 21:55:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,762 INFO L225 Difference]: With dead ends: 767 [2023-12-18 21:55:40,763 INFO L226 Difference]: Without dead ends: 513 [2023-12-18 21:55:40,763 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 [2023-12-18 21:55:40,763 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 160 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 535 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 21:55:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-18 21:55:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-12-18 21:55:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.419921875) internal successors, (727), 512 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 727 transitions. [2023-12-18 21:55:40,771 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 727 transitions. Word has length 117 [2023-12-18 21:55:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,771 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 727 transitions. [2023-12-18 21:55:40,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 727 transitions. [2023-12-18 21:55:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-18 21:55:40,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,772 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-18 21:55:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 21:55:40,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1216133954, now seen corresponding path program 1 times [2023-12-18 21:55:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088006391] [2023-12-18 21:55:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 21:55:40,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088006391] [2023-12-18 21:55:40,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088006391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712049502] [2023-12-18 21:55:40,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,830 INFO L87 Difference]: Start difference. First operand 513 states and 727 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,861 INFO L93 Difference]: Finished difference Result 1265 states and 1792 transitions. [2023-12-18 21:55:40,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-18 21:55:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,864 INFO L225 Difference]: With dead ends: 1265 [2023-12-18 21:55:40,864 INFO L226 Difference]: Without dead ends: 763 [2023-12-18 21:55:40,864 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 [2023-12-18 21:55:40,865 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 162 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 557 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 21:55:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-18 21:55:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2023-12-18 21:55:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.4146981627296589) internal successors, (1078), 762 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1078 transitions. [2023-12-18 21:55:40,880 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1078 transitions. Word has length 117 [2023-12-18 21:55:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,880 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1078 transitions. [2023-12-18 21:55:40,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1078 transitions. [2023-12-18 21:55:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-18 21:55:40,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,882 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-18 21:55:40,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 21:55:40,882 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1512075392, now seen corresponding path program 1 times [2023-12-18 21:55:40,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650671651] [2023-12-18 21:55:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-18 21:55:40,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:40,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650671651] [2023-12-18 21:55:40,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650671651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:40,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:40,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:40,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744167966] [2023-12-18 21:55:40,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:40,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:40,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:40,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:40,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:40,929 INFO L87 Difference]: Start difference. First operand 763 states and 1078 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:40,956 INFO L93 Difference]: Finished difference Result 1538 states and 2166 transitions. [2023-12-18 21:55:40,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:40,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 117 [2023-12-18 21:55:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:40,959 INFO L225 Difference]: With dead ends: 1538 [2023-12-18 21:55:40,959 INFO L226 Difference]: Without dead ends: 786 [2023-12-18 21:55:40,960 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 [2023-12-18 21:55:40,961 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 10 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:40,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 445 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 21:55:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-12-18 21:55:40,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2023-12-18 21:55:40,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.4089171974522292) internal successors, (1106), 785 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) [2023-12-18 21:55:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1106 transitions. [2023-12-18 21:55:40,976 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1106 transitions. Word has length 117 [2023-12-18 21:55:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:40,976 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1106 transitions. [2023-12-18 21:55:40,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1106 transitions. [2023-12-18 21:55:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-18 21:55:40,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:40,978 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-18 21:55:40,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 21:55:40,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:40,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash 385421374, now seen corresponding path program 1 times [2023-12-18 21:55:40,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:40,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515117505] [2023-12-18 21:55:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-18 21:55:41,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515117505] [2023-12-18 21:55:41,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515117505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 21:55:41,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001854540] [2023-12-18 21:55:41,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,006 INFO L87 Difference]: Start difference. First operand 786 states and 1106 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) [2023-12-18 21:55:41,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,027 INFO L93 Difference]: Finished difference Result 1573 states and 2206 transitions. [2023-12-18 21:55:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,028 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 117 [2023-12-18 21:55:41,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,032 INFO L225 Difference]: With dead ends: 1573 [2023-12-18 21:55:41,032 INFO L226 Difference]: Without dead ends: 798 [2023-12-18 21:55:41,037 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 [2023-12-18 21:55:41,038 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 13 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 419 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 21:55:41,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-12-18 21:55:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2023-12-18 21:55:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4027603513174405) internal successors, (1118), 797 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1118 transitions. [2023-12-18 21:55:41,049 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1118 transitions. Word has length 117 [2023-12-18 21:55:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,050 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1118 transitions. [2023-12-18 21:55:41,050 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) [2023-12-18 21:55:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1118 transitions. [2023-12-18 21:55:41,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-18 21:55:41,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,051 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:41,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-18 21:55:41,052 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash -821751423, now seen corresponding path program 1 times [2023-12-18 21:55:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747914786] [2023-12-18 21:55:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-18 21:55:41,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747914786] [2023-12-18 21:55:41,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747914786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147115714] [2023-12-18 21:55:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,101 INFO L87 Difference]: Start difference. First operand 798 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,200 INFO L93 Difference]: Finished difference Result 1684 states and 2401 transitions. [2023-12-18 21:55:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2023-12-18 21:55:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,204 INFO L225 Difference]: With dead ends: 1684 [2023-12-18 21:55:41,204 INFO L226 Difference]: Without dead ends: 909 [2023-12-18 21:55:41,205 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 [2023-12-18 21:55:41,206 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 35 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 355 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-12-18 21:55:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 878. [2023-12-18 21:55:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.3842645381984036) internal successors, (1214), 877 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1214 transitions. [2023-12-18 21:55:41,220 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1214 transitions. Word has length 154 [2023-12-18 21:55:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,220 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1214 transitions. [2023-12-18 21:55:41,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1214 transitions. [2023-12-18 21:55:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-18 21:55:41,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,222 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:41,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-18 21:55:41,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1792277032, now seen corresponding path program 1 times [2023-12-18 21:55:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513471241] [2023-12-18 21:55:41,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-18 21:55:41,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513471241] [2023-12-18 21:55:41,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513471241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:41,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598385333] [2023-12-18 21:55:41,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,280 INFO L87 Difference]: Start difference. First operand 878 states and 1214 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,406 INFO L93 Difference]: Finished difference Result 1900 states and 2688 transitions. [2023-12-18 21:55:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 165 [2023-12-18 21:55:41,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,409 INFO L225 Difference]: With dead ends: 1900 [2023-12-18 21:55:41,409 INFO L226 Difference]: Without dead ends: 1042 [2023-12-18 21:55:41,409 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 [2023-12-18 21:55:41,410 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 197 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 186 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-12-18 21:55:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1025. [2023-12-18 21:55:41,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1024 states have (on average 1.4287109375) internal successors, (1463), 1024 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1463 transitions. [2023-12-18 21:55:41,424 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1463 transitions. Word has length 165 [2023-12-18 21:55:41,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,425 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1463 transitions. [2023-12-18 21:55:41,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1463 transitions. [2023-12-18 21:55:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-18 21:55:41,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,427 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:41,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-18 21:55:41,427 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash -441903689, now seen corresponding path program 1 times [2023-12-18 21:55:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837926615] [2023-12-18 21:55:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-18 21:55:41,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837926615] [2023-12-18 21:55:41,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837926615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7921073] [2023-12-18 21:55:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,472 INFO L87 Difference]: Start difference. First operand 1025 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,569 INFO L93 Difference]: Finished difference Result 2117 states and 3057 transitions. [2023-12-18 21:55:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 196 [2023-12-18 21:55:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,574 INFO L225 Difference]: With dead ends: 2117 [2023-12-18 21:55:41,574 INFO L226 Difference]: Without dead ends: 1115 [2023-12-18 21:55:41,577 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 [2023-12-18 21:55:41,577 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 13 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 365 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-18 21:55:41,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-18 21:55:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.40754039497307) internal successors, (1568), 1114 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1568 transitions. [2023-12-18 21:55:41,593 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1568 transitions. Word has length 196 [2023-12-18 21:55:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,593 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1568 transitions. [2023-12-18 21:55:41,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1568 transitions. [2023-12-18 21:55:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-18 21:55:41,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 21:55:41,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 21:55:41,596 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1642226952, now seen corresponding path program 1 times [2023-12-18 21:55:41,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944239742] [2023-12-18 21:55:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-12-18 21:55:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944239742] [2023-12-18 21:55:41,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944239742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:41,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666634022] [2023-12-18 21:55:41,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,675 INFO L87 Difference]: Start difference. First operand 1115 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,784 INFO L93 Difference]: Finished difference Result 2330 states and 3330 transitions. [2023-12-18 21:55:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 223 [2023-12-18 21:55:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,787 INFO L225 Difference]: With dead ends: 2330 [2023-12-18 21:55:41,788 INFO L226 Difference]: Without dead ends: 1113 [2023-12-18 21:55:41,789 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 [2023-12-18 21:55:41,789 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 9 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 371 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-12-18 21:55:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-12-18 21:55:41,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.4010791366906474) internal successors, (1558), 1112 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1558 transitions. [2023-12-18 21:55:41,806 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1558 transitions. Word has length 223 [2023-12-18 21:55:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,806 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1558 transitions. [2023-12-18 21:55:41,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1558 transitions. [2023-12-18 21:55:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-18 21:55:41,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,809 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-18 21:55:41,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 21:55:41,809 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 180266606, now seen corresponding path program 1 times [2023-12-18 21:55:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882562892] [2023-12-18 21:55:41,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-18 21:55:41,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:41,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882562892] [2023-12-18 21:55:41,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882562892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755630750] [2023-12-18 21:55:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:41,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:41,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:41,871 INFO L87 Difference]: Start difference. First operand 1113 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:41,899 INFO L93 Difference]: Finished difference Result 3180 states and 4479 transitions. [2023-12-18 21:55:41,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:41,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 262 [2023-12-18 21:55:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:41,903 INFO L225 Difference]: With dead ends: 3180 [2023-12-18 21:55:41,903 INFO L226 Difference]: Without dead ends: 1415 [2023-12-18 21:55:41,905 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 [2023-12-18 21:55:41,905 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 148 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:41,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 606 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 21:55:41,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-12-18 21:55:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1413. [2023-12-18 21:55:41,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1412 states have (on average 1.405099150141643) internal successors, (1984), 1412 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1984 transitions. [2023-12-18 21:55:41,963 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1984 transitions. Word has length 262 [2023-12-18 21:55:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:41,963 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1984 transitions. [2023-12-18 21:55:41,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1984 transitions. [2023-12-18 21:55:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-18 21:55:41,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:41,966 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-18 21:55:41,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-18 21:55:41,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:41,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:41,967 INFO L85 PathProgramCache]: Analyzing trace with hash -607280505, now seen corresponding path program 1 times [2023-12-18 21:55:41,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:41,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238875432] [2023-12-18 21:55:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-12-18 21:55:42,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238875432] [2023-12-18 21:55:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238875432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:42,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869672368] [2023-12-18 21:55:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:42,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:42,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:42,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:42,026 INFO L87 Difference]: Start difference. First operand 1413 states and 1984 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:42,118 INFO L93 Difference]: Finished difference Result 2959 states and 4213 transitions. [2023-12-18 21:55:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:42,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 308 [2023-12-18 21:55:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:42,122 INFO L225 Difference]: With dead ends: 2959 [2023-12-18 21:55:42,122 INFO L226 Difference]: Without dead ends: 1569 [2023-12-18 21:55:42,125 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 [2023-12-18 21:55:42,125 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:42,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 367 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:42,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2023-12-18 21:55:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1517. [2023-12-18 21:55:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 1.3905013192612137) internal successors, (2108), 1516 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2108 transitions. [2023-12-18 21:55:42,157 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2108 transitions. Word has length 308 [2023-12-18 21:55:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:42,158 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2108 transitions. [2023-12-18 21:55:42,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2108 transitions. [2023-12-18 21:55:42,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-18 21:55:42,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:42,161 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-18 21:55:42,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-18 21:55:42,161 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:42,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1677575352, now seen corresponding path program 1 times [2023-12-18 21:55:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:42,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144126046] [2023-12-18 21:55:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2023-12-18 21:55:42,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144126046] [2023-12-18 21:55:42,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144126046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:42,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:42,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042488557] [2023-12-18 21:55:42,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:42,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:42,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:42,226 INFO L87 Difference]: Start difference. First operand 1517 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:42,319 INFO L93 Difference]: Finished difference Result 3131 states and 4389 transitions. [2023-12-18 21:55:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 330 [2023-12-18 21:55:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:42,323 INFO L225 Difference]: With dead ends: 3131 [2023-12-18 21:55:42,323 INFO L226 Difference]: Without dead ends: 1637 [2023-12-18 21:55:42,325 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 [2023-12-18 21:55:42,326 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:42,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 367 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-12-18 21:55:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1629. [2023-12-18 21:55:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.375921375921376) internal successors, (2240), 1628 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2240 transitions. [2023-12-18 21:55:42,351 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2240 transitions. Word has length 330 [2023-12-18 21:55:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:42,351 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2240 transitions. [2023-12-18 21:55:42,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2240 transitions. [2023-12-18 21:55:42,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-12-18 21:55:42,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:42,354 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-12-18 21:55:42,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-18 21:55:42,355 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:42,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:42,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1748390064, now seen corresponding path program 1 times [2023-12-18 21:55:42,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:42,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247409273] [2023-12-18 21:55:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-18 21:55:42,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:42,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247409273] [2023-12-18 21:55:42,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247409273] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 21:55:42,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423333288] [2023-12-18 21:55:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:42,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 21:55:42,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 21:55:42,507 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) [2023-12-18 21:55:42,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 21:55:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:42,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 21:55:42,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 21:55:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-18 21:55:42,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 21:55:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-18 21:55:42,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423333288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 21:55:42,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 21:55:42,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-18 21:55:42,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988726677] [2023-12-18 21:55:42,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 21:55:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-18 21:55:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-18 21:55:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-18 21:55:42,966 INFO L87 Difference]: Start difference. First operand 1629 states and 2240 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 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) [2023-12-18 21:55:43,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:43,300 INFO L93 Difference]: Finished difference Result 3978 states and 5542 transitions. [2023-12-18 21:55:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-18 21:55:43,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 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 362 [2023-12-18 21:55:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:43,307 INFO L225 Difference]: With dead ends: 3978 [2023-12-18 21:55:43,307 INFO L226 Difference]: Without dead ends: 2253 [2023-12-18 21:55:43,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-18 21:55:43,309 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 883 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:43,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 531 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-18 21:55:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-12-18 21:55:43,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1641. [2023-12-18 21:55:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1640 states have (on average 1.3609756097560977) internal successors, (2232), 1640 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2232 transitions. [2023-12-18 21:55:43,337 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2232 transitions. Word has length 362 [2023-12-18 21:55:43,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:43,337 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2232 transitions. [2023-12-18 21:55:43,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 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) [2023-12-18 21:55:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2232 transitions. [2023-12-18 21:55:43,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-18 21:55:43,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:43,342 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2023-12-18 21:55:43,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 21:55:43,546 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,SelfDestructingSolverStorable16 [2023-12-18 21:55:43,547 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:43,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash -240620891, now seen corresponding path program 1 times [2023-12-18 21:55:43,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:43,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172247143] [2023-12-18 21:55:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:43,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2023-12-18 21:55:43,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172247143] [2023-12-18 21:55:43,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172247143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:43,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:43,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:43,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919752209] [2023-12-18 21:55:43,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:43,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:43,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:43,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:43,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:43,625 INFO L87 Difference]: Start difference. First operand 1641 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:43,729 INFO L93 Difference]: Finished difference Result 3434 states and 4738 transitions. [2023-12-18 21:55:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:43,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 459 [2023-12-18 21:55:43,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:43,734 INFO L225 Difference]: With dead ends: 3434 [2023-12-18 21:55:43,734 INFO L226 Difference]: Without dead ends: 1816 [2023-12-18 21:55:43,736 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 [2023-12-18 21:55:43,736 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:43,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2023-12-18 21:55:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1806. [2023-12-18 21:55:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 1.3418282548476455) internal successors, (2422), 1805 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:43,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2422 transitions. [2023-12-18 21:55:43,767 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2422 transitions. Word has length 459 [2023-12-18 21:55:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:43,768 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 2422 transitions. [2023-12-18 21:55:43,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2422 transitions. [2023-12-18 21:55:43,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2023-12-18 21:55:43,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:43,773 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 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] [2023-12-18 21:55:43,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-18 21:55:43,773 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:43,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:43,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1116598587, now seen corresponding path program 1 times [2023-12-18 21:55:43,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:43,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898684148] [2023-12-18 21:55:43,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:43,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-12-18 21:55:43,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:43,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898684148] [2023-12-18 21:55:43,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898684148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 21:55:43,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 21:55:43,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 21:55:43,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116791313] [2023-12-18 21:55:43,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 21:55:43,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 21:55:43,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:43,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 21:55:43,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 21:55:43,882 INFO L87 Difference]: Start difference. First operand 1806 states and 2422 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:43,991 INFO L93 Difference]: Finished difference Result 3774 states and 5138 transitions. [2023-12-18 21:55:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 21:55:43,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 519 [2023-12-18 21:55:43,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:43,996 INFO L225 Difference]: With dead ends: 3774 [2023-12-18 21:55:43,996 INFO L226 Difference]: Without dead ends: 1991 [2023-12-18 21:55:43,998 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 [2023-12-18 21:55:43,998 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:43,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 21:55:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2023-12-18 21:55:44,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1981. [2023-12-18 21:55:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1980 states have (on average 1.3242424242424242) internal successors, (2622), 1980 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2622 transitions. [2023-12-18 21:55:44,027 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2622 transitions. Word has length 519 [2023-12-18 21:55:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:44,028 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2622 transitions. [2023-12-18 21:55:44,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2622 transitions. [2023-12-18 21:55:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2023-12-18 21:55:44,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 21:55:44,034 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 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] [2023-12-18 21:55:44,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-18 21:55:44,034 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 21:55:44,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 21:55:44,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1334857221, now seen corresponding path program 1 times [2023-12-18 21:55:44,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 21:55:44,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459921607] [2023-12-18 21:55:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:44,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 21:55:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-18 21:55:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 21:55:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459921607] [2023-12-18 21:55:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459921607] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 21:55:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386743388] [2023-12-18 21:55:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 21:55:44,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 21:55:44,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 21:55:44,194 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) [2023-12-18 21:55:44,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 21:55:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 21:55:44,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 21:55:44,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 21:55:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-18 21:55:44,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 21:55:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-18 21:55:44,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386743388] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 21:55:44,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 21:55:44,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-18 21:55:44,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949703637] [2023-12-18 21:55:44,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 21:55:44,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-18 21:55:44,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 21:55:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-18 21:55:44,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-18 21:55:44,525 INFO L87 Difference]: Start difference. First operand 1981 states and 2622 transitions. Second operand has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 21:55:44,894 INFO L93 Difference]: Finished difference Result 2829 states and 3760 transitions. [2023-12-18 21:55:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 21:55:44,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 583 [2023-12-18 21:55:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 21:55:44,895 INFO L225 Difference]: With dead ends: 2829 [2023-12-18 21:55:44,895 INFO L226 Difference]: Without dead ends: 0 [2023-12-18 21:55:44,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 1165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-18 21:55:44,898 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-18 21:55:44,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1078 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-18 21:55:44,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-18 21:55:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-18 21:55:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-18 21:55:44,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2023-12-18 21:55:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 21:55:44,902 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-18 21:55:44,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 21:55:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-18 21:55:44,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-18 21:55:44,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 21:55:44,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-18 21:55:45,112 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,SelfDestructingSolverStorable19 [2023-12-18 21:55:45,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 469) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 184 614) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 157 623) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 608) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 619) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 630) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 145 627) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 572) no Hoare annotation was computed. [2023-12-18 21:55:45,479 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L370(lines 352 388) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 607) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 618) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 629) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 481) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 250) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 250) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 376) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L405-1(line 405) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L405-3(lines 405 425) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L670(lines 75 687) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L406(line 406) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L406-2(line 406) no Hoare annotation was computed. [2023-12-18 21:55:45,480 INFO L899 garLoopResultBuilder]: For program point L406-4(lines 406 412) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 606) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 617) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 628) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 669) the Hoare annotation is: (let ((.cse3 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse1 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse0 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|))) (or (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse0 (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse0 .cse1) (and .cse0 (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse0 .cse2) (and .cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) .cse2) (and .cse3 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse3 .cse1) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3) (and .cse0 .cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8655)) (and (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528) .cse0))) [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 667) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 664) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L574-2(lines 574 578) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,481 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 127 633) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 605) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 616) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 627) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 638) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 650) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L674-2(lines 674 678) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L641-2(lines 640 662) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 282) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 316) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L312-2(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L214(lines 214 604) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 615) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 626) no Hoare annotation was computed. [2023-12-18 21:55:45,482 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 637) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L347(line 347) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L347-2(line 347) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L347-4(lines 347 351) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L347-6(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 459) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L414(lines 405 425) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L447-2(lines 447 459) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 202 608) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 614) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 625) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 636) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 554) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 455) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2023-12-18 21:55:45,483 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 257) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 613) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 624) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 635) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 594) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 594) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 490) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L222(lines 115 637) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 178 616) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L685(lines 75 687) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 658) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L355(line 355) no Hoare annotation was computed. [2023-12-18 21:55:45,484 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 326) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L355-2(line 355) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L322-2(lines 322 326) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L355-4(lines 355 387) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 612) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 623) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 634) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 196 610) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point $Ultimate##195(lines 394 431) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 591) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 75 687) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L93-2(line 93) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 101) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L93-5(lines 75 687) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 386) no Hoare annotation was computed. [2023-12-18 21:55:45,485 INFO L899 garLoopResultBuilder]: For program point $Ultimate##137(line 331) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L358-1(lines 358 386) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 272) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 611) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 622) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 633) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L94-2(line 94) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L94-4(lines 94 98) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 208 606) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 383) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 190 612) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 266) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point $Ultimate##279(lines 639 667) no Hoare annotation was computed. [2023-12-18 21:55:45,486 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 136 630) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 567) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 299) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L295-2(lines 219 600) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 610) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 621) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 632) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point $Ultimate##209(line 405) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 426) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L362(line 362) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L362-2(line 362) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L362-4(lines 362 382) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 681) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L396-2(line 396) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point L396-4(lines 396 402) no Hoare annotation was computed. [2023-12-18 21:55:45,487 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 169 619) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 534) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L364(line 364) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L331-1(line 331) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L364-2(line 364) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L331-3(lines 331 340) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L364-4(lines 364 368) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 609) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 620) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L331-5(lines 331 340) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L364-6(lines 362 380) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 631) no Hoare annotation was computed. [2023-12-18 21:55:45,488 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2023-12-18 21:55:45,491 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] [2023-12-18 21:55:45,492 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 21:55:45,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 09:55:45 BoogieIcfgContainer [2023-12-18 21:55:45,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 21:55:45,501 INFO L158 Benchmark]: Toolchain (without parser) took 7310.44ms. Allocated memory was 200.3MB in the beginning and 374.3MB in the end (delta: 174.1MB). Free memory was 147.7MB in the beginning and 159.8MB in the end (delta: -12.1MB). Peak memory consumption was 163.0MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,501 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 21:55:45,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.28ms. Allocated memory is still 200.3MB. Free memory was 147.7MB in the beginning and 130.6MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.76ms. Allocated memory is still 200.3MB. Free memory was 130.6MB in the beginning and 127.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,502 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 200.3MB. Free memory was 127.4MB in the beginning and 123.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,502 INFO L158 Benchmark]: RCFGBuilder took 613.14ms. Allocated memory was 200.3MB in the beginning and 295.7MB in the end (delta: 95.4MB). Free memory was 123.9MB in the beginning and 240.6MB in the end (delta: -116.7MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,502 INFO L158 Benchmark]: TraceAbstraction took 6266.83ms. Allocated memory was 295.7MB in the beginning and 374.3MB in the end (delta: 78.6MB). Free memory was 240.1MB in the beginning and 159.8MB in the end (delta: 80.2MB). Peak memory consumption was 158.9MB. Max. memory is 8.0GB. [2023-12-18 21:55:45,503 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 200.3MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.28ms. Allocated memory is still 200.3MB. Free memory was 147.7MB in the beginning and 130.6MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.76ms. Allocated memory is still 200.3MB. Free memory was 130.6MB in the beginning and 127.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 200.3MB. Free memory was 127.4MB in the beginning and 123.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 613.14ms. Allocated memory was 200.3MB in the beginning and 295.7MB in the end (delta: 95.4MB). Free memory was 123.9MB in the beginning and 240.6MB in the end (delta: -116.7MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. * TraceAbstraction took 6266.83ms. Allocated memory was 295.7MB in the beginning and 374.3MB in the end (delta: 78.6MB). Free memory was 240.1MB in the beginning and 159.8MB in the end (delta: 80.2MB). Peak memory consumption was 158.9MB. 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 - PositiveResult [Line: 681]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 20, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2096 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2096 mSDsluCounter, 8761 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3766 mSDsCounter, 487 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2614 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 487 mSolverCounterUnsat, 4995 mSDtfsCounter, 2614 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1960 GetRequests, 1925 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1981occurred in iteration=19, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 778 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 46 NumberOfFragments, 102 HoareAnnotationTreeSize, 1 FormulaSimplifications, 416 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 379 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 5329 NumberOfCodeBlocks, 5329 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 6250 ConstructedInterpolants, 0 QuantifiedInterpolants, 8217 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1483 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 24854/25004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((8464 == s__state) && (blastFlag == 0)) || ((2 == blastFlag) && (8560 == s__state))) || ((2 == blastFlag) && (s__state == 8512))) || ((2 == blastFlag) && !((0 == s__hit)))) || ((2 == blastFlag) && (8544 == s__state))) || (((s__state == 8656) && (2 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (s__state == 8672)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (3 == s__s3__tmp__next_state___0)) && (8448 == s__state))) || ((3 == blastFlag) && !((0 == s__hit)))) || (s__state == 3)) || (((2 == blastFlag) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((8496 == s__state) && (blastFlag == 1))) || ((s__state == 8528) && (2 == blastFlag))) RESULT: Ultimate proved your program to be correct! [2023-12-18 21:55:45,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...