/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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:34:11,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:34:11,649 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 10:34:11,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:34:11,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:34:11,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:34:11,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:34:11,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:34:11,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:34:11,668 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:34:11,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:34:11,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:34:11,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:34:11,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:34:11,669 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:34:11,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:34:11,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:34:11,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:34:11,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:34:11,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:34:11,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:34:11,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:34:11,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:34:11,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:34:11,671 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:34:11,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:34:11,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:34:11,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:34:11,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:34:11,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:34:11,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:34:11,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:34:11,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:34:11,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:34:11,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:34:11,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:34:11,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:34:11,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:34:11,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:34:11,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:34:11,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:34:11,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:34:11,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:34:11,675 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:34:11,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:34:11,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:34:11,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:34:11,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:34:11,833 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:34:11,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2023-12-19 10:34:12,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:34:13,141 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:34:13,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2023-12-19 10:34:13,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8921baee6/487591ddeeff4cb9b563fcb332a79d02/FLAG8d2d96b95 [2023-12-19 10:34:13,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8921baee6/487591ddeeff4cb9b563fcb332a79d02 [2023-12-19 10:34:13,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:34:13,166 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:34:13,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:34:13,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:34:13,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:34:13,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d4faf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13, skipping insertion in model container [2023-12-19 10:34:13,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:34:13,305 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i[917,930] [2023-12-19 10:34:13,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:34:13,354 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:34:13,362 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i[917,930] [2023-12-19 10:34:13,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:34:13,386 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:34:13,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13 WrapperNode [2023-12-19 10:34:13,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:34:13,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:34:13,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:34:13,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:34:13,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,452 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-12-19 10:34:13,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:34:13,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:34:13,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:34:13,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:34:13,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,483 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 10:34:13,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:34:13,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:34:13,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:34:13,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:34:13,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (1/1) ... [2023-12-19 10:34:13,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:34:13,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:34:13,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 10:34:13,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 10:34:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:34:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:34:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:34:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:34:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:34:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:34:13,782 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:34:13,785 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:34:14,075 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:34:14,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:34:14,099 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:34:14,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:34:14 BoogieIcfgContainer [2023-12-19 10:34:14,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:34:14,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:34:14,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:34:14,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:34:14,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:34:13" (1/3) ... [2023-12-19 10:34:14,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2896b2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:34:14, skipping insertion in model container [2023-12-19 10:34:14,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:34:13" (2/3) ... [2023-12-19 10:34:14,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2896b2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:34:14, skipping insertion in model container [2023-12-19 10:34:14,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:34:14" (3/3) ... [2023-12-19 10:34:14,105 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-66.i [2023-12-19 10:34:14,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:34:14,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:34:14,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:34:14,154 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;@23daca3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:34:14,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:34:14,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 10:34:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 10:34:14,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:14,164 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:14,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:14,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1944780512, now seen corresponding path program 1 times [2023-12-19 10:34:14,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:14,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675938961] [2023-12-19 10:34:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:14,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:14,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:14,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675938961] [2023-12-19 10:34:14,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675938961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:14,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:14,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:34:14,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833964100] [2023-12-19 10:34:14,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:14,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:34:14,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:34:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:34:14,508 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:14,555 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2023-12-19 10:34:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:34:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2023-12-19 10:34:14,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:14,565 INFO L225 Difference]: With dead ends: 75 [2023-12-19 10:34:14,565 INFO L226 Difference]: Without dead ends: 37 [2023-12-19 10:34:14,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:34:14,569 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:14,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:34:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-19 10:34:14,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-19 10:34:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 10:34:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2023-12-19 10:34:14,597 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 85 [2023-12-19 10:34:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:14,598 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2023-12-19 10:34:14,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-12-19 10:34:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-19 10:34:14,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:14,600 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 10:34:14,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:14,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1661919200, now seen corresponding path program 1 times [2023-12-19 10:34:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:14,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666102602] [2023-12-19 10:34:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:14,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:14,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666102602] [2023-12-19 10:34:14,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666102602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:14,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:14,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:34:14,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356510173] [2023-12-19 10:34:14,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:14,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:34:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:14,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:34:14,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:34:14,964 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:15,009 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2023-12-19 10:34:15,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:34:15,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-12-19 10:34:15,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:15,015 INFO L225 Difference]: With dead ends: 109 [2023-12-19 10:34:15,015 INFO L226 Difference]: Without dead ends: 73 [2023-12-19 10:34:15,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:34:15,018 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:15,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:34:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-19 10:34:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2023-12-19 10:34:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 10:34:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2023-12-19 10:34:15,040 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 85 [2023-12-19 10:34:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:15,041 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2023-12-19 10:34:15,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2023-12-19 10:34:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:15,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:15,043 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:15,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 10:34:15,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:15,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash -20088315, now seen corresponding path program 1 times [2023-12-19 10:34:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:15,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826177742] [2023-12-19 10:34:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:15,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:15,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:15,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826177742] [2023-12-19 10:34:15,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826177742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:15,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:15,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 10:34:15,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604343205] [2023-12-19 10:34:15,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:15,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 10:34:15,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:15,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 10:34:15,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 10:34:15,490 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:15,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:15,676 INFO L93 Difference]: Finished difference Result 183 states and 271 transitions. [2023-12-19 10:34:15,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 10:34:15,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-12-19 10:34:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:15,681 INFO L225 Difference]: With dead ends: 183 [2023-12-19 10:34:15,681 INFO L226 Difference]: Without dead ends: 114 [2023-12-19 10:34:15,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:34:15,687 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:15,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 162 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:34:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-19 10:34:15,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2023-12-19 10:34:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:15,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2023-12-19 10:34:15,706 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 86 [2023-12-19 10:34:15,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:15,706 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2023-12-19 10:34:15,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2023-12-19 10:34:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:15,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:15,708 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:15,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 10:34:15,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:15,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:15,709 INFO L85 PathProgramCache]: Analyzing trace with hash -20147897, now seen corresponding path program 1 times [2023-12-19 10:34:15,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:15,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915412956] [2023-12-19 10:34:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:15,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:19,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:19,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915412956] [2023-12-19 10:34:19,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915412956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:19,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:19,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 10:34:19,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057122064] [2023-12-19 10:34:19,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:19,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 10:34:19,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:19,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 10:34:19,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-19 10:34:19,214 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:19,795 INFO L93 Difference]: Finished difference Result 110 states and 161 transitions. [2023-12-19 10:34:19,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 10:34:19,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-12-19 10:34:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:19,796 INFO L225 Difference]: With dead ends: 110 [2023-12-19 10:34:19,796 INFO L226 Difference]: Without dead ends: 108 [2023-12-19 10:34:19,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-19 10:34:19,797 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 10:34:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-19 10:34:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2023-12-19 10:34:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2023-12-19 10:34:19,810 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 86 [2023-12-19 10:34:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:19,811 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2023-12-19 10:34:19,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 10:34:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2023-12-19 10:34:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:19,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:19,813 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:19,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 10:34:19,813 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:19,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:19,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1204557765, now seen corresponding path program 1 times [2023-12-19 10:34:19,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:19,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853433377] [2023-12-19 10:34:19,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:19,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:23,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:23,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853433377] [2023-12-19 10:34:23,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853433377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:23,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:23,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 10:34:23,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625810873] [2023-12-19 10:34:23,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:23,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 10:34:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 10:34:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:34:23,836 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:24,965 INFO L93 Difference]: Finished difference Result 146 states and 208 transitions. [2023-12-19 10:34:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 10:34:24,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-19 10:34:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:24,967 INFO L225 Difference]: With dead ends: 146 [2023-12-19 10:34:24,967 INFO L226 Difference]: Without dead ends: 144 [2023-12-19 10:34:24,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-19 10:34:24,968 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 110 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:24,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 231 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 10:34:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-19 10:34:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 113. [2023-12-19 10:34:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 169 transitions. [2023-12-19 10:34:24,989 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 169 transitions. Word has length 86 [2023-12-19 10:34:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:24,989 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 169 transitions. [2023-12-19 10:34:24,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 169 transitions. [2023-12-19 10:34:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:24,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:24,994 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:24,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 10:34:24,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:24,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1206404807, now seen corresponding path program 1 times [2023-12-19 10:34:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408111203] [2023-12-19 10:34:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:25,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:25,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408111203] [2023-12-19 10:34:25,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408111203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:25,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:25,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 10:34:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469919878] [2023-12-19 10:34:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:25,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 10:34:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 10:34:25,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 10:34:25,101 INFO L87 Difference]: Start difference. First operand 113 states and 169 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:25,186 INFO L93 Difference]: Finished difference Result 186 states and 266 transitions. [2023-12-19 10:34:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 10:34:25,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-19 10:34:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:25,191 INFO L225 Difference]: With dead ends: 186 [2023-12-19 10:34:25,191 INFO L226 Difference]: Without dead ends: 148 [2023-12-19 10:34:25,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:34:25,194 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:25,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 140 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:34:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-19 10:34:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 126. [2023-12-19 10:34:25,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 77 states have internal predecessors, (93), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 177 transitions. [2023-12-19 10:34:25,240 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 177 transitions. Word has length 86 [2023-12-19 10:34:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:25,241 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 177 transitions. [2023-12-19 10:34:25,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 177 transitions. [2023-12-19 10:34:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:25,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:25,243 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:25,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 10:34:25,243 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:25,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1261816067, now seen corresponding path program 1 times [2023-12-19 10:34:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:25,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442545173] [2023-12-19 10:34:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:33,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442545173] [2023-12-19 10:34:33,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442545173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:33,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:33,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 10:34:33,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832122882] [2023-12-19 10:34:33,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:33,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 10:34:33,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:33,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 10:34:33,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:34:33,302 INFO L87 Difference]: Start difference. First operand 126 states and 177 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:34,105 INFO L93 Difference]: Finished difference Result 165 states and 221 transitions. [2023-12-19 10:34:34,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 10:34:34,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-19 10:34:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:34,121 INFO L225 Difference]: With dead ends: 165 [2023-12-19 10:34:34,121 INFO L226 Difference]: Without dead ends: 163 [2023-12-19 10:34:34,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-19 10:34:34,125 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 93 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:34,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 226 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 10:34:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-19 10:34:34,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 131. [2023-12-19 10:34:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 81 states have internal predecessors, (98), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 182 transitions. [2023-12-19 10:34:34,163 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 182 transitions. Word has length 86 [2023-12-19 10:34:34,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:34,163 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 182 transitions. [2023-12-19 10:34:34,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 182 transitions. [2023-12-19 10:34:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-19 10:34:34,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:34,165 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:34,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 10:34:34,165 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:34,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1263663109, now seen corresponding path program 1 times [2023-12-19 10:34:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:34,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165506676] [2023-12-19 10:34:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:35,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:35,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165506676] [2023-12-19 10:34:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165506676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:35,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:35,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 10:34:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044897528] [2023-12-19 10:34:35,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:35,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 10:34:35,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:35,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 10:34:35,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-19 10:34:35,941 INFO L87 Difference]: Start difference. First operand 131 states and 182 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:36,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:36,626 INFO L93 Difference]: Finished difference Result 206 states and 280 transitions. [2023-12-19 10:34:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 10:34:36,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-19 10:34:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:36,627 INFO L225 Difference]: With dead ends: 206 [2023-12-19 10:34:36,627 INFO L226 Difference]: Without dead ends: 165 [2023-12-19 10:34:36,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-12-19 10:34:36,628 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 75 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:36,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 259 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 10:34:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-19 10:34:36,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 129. [2023-12-19 10:34:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-12-19 10:34:36,640 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 86 [2023-12-19 10:34:36,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:36,640 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-12-19 10:34:36,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-12-19 10:34:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 10:34:36,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:36,655 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:36,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 10:34:36,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:36,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1313450494, now seen corresponding path program 1 times [2023-12-19 10:34:36,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:36,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340793222] [2023-12-19 10:34:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:36,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:38,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:38,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340793222] [2023-12-19 10:34:38,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340793222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:38,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:38,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 10:34:38,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688040673] [2023-12-19 10:34:38,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:38,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 10:34:38,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:38,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 10:34:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 10:34:38,449 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:39,565 INFO L93 Difference]: Finished difference Result 154 states and 206 transitions. [2023-12-19 10:34:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 10:34:39,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-19 10:34:39,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:39,567 INFO L225 Difference]: With dead ends: 154 [2023-12-19 10:34:39,567 INFO L226 Difference]: Without dead ends: 152 [2023-12-19 10:34:39,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-12-19 10:34:39,568 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 73 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:39,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 229 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 10:34:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-19 10:34:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 131. [2023-12-19 10:34:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 81 states have internal predecessors, (97), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 181 transitions. [2023-12-19 10:34:39,595 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 181 transitions. Word has length 87 [2023-12-19 10:34:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:39,596 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 181 transitions. [2023-12-19 10:34:39,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 181 transitions. [2023-12-19 10:34:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-19 10:34:39,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:39,596 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:39,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 10:34:39,597 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:39,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:39,597 INFO L85 PathProgramCache]: Analyzing trace with hash 461556868, now seen corresponding path program 1 times [2023-12-19 10:34:39,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:39,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363393942] [2023-12-19 10:34:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:39,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 10:34:43,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:43,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363393942] [2023-12-19 10:34:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363393942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:34:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:34:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-19 10:34:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857845791] [2023-12-19 10:34:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:34:43,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-19 10:34:43,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-19 10:34:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-19 10:34:43,015 INFO L87 Difference]: Start difference. First operand 131 states and 181 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:44,280 INFO L93 Difference]: Finished difference Result 150 states and 200 transitions. [2023-12-19 10:34:44,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 10:34:44,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-19 10:34:44,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:44,281 INFO L225 Difference]: With dead ends: 150 [2023-12-19 10:34:44,281 INFO L226 Difference]: Without dead ends: 148 [2023-12-19 10:34:44,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-12-19 10:34:44,282 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:44,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 228 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 10:34:44,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-19 10:34:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-12-19 10:34:44,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-12-19 10:34:44,297 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 87 [2023-12-19 10:34:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-12-19 10:34:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-19 10:34:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-12-19 10:34:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-19 10:34:44,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:44,298 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:34:44,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 10:34:44,299 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:44,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:44,299 INFO L85 PathProgramCache]: Analyzing trace with hash 324235561, now seen corresponding path program 1 times [2023-12-19 10:34:44,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:44,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390432113] [2023-12-19 10:34:44,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:44,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 10:34:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 10:34:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 10:34:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 10:34:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 10:34:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 10:34:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 10:34:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 10:34:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-19 10:34:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 10:34:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 10:34:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-19 10:34:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 10:34:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 10:34:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-19 10:34:48,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390432113] [2023-12-19 10:34:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390432113] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 10:34:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970819969] [2023-12-19 10:34:48,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:48,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:34:48,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:34:48,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:34:48,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 10:34:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:48,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 10:34:48,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:34:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 914 proven. 33 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-12-19 10:34:48,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:34:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 31 proven. 75 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-12-19 10:34:48,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970819969] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:34:48,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 10:34:48,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 21 [2023-12-19 10:34:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364650943] [2023-12-19 10:34:48,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 10:34:48,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 10:34:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:34:48,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 10:34:48,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-12-19 10:34:48,648 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-19 10:34:53,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:34:53,745 INFO L93 Difference]: Finished difference Result 288 states and 378 transitions. [2023-12-19 10:34:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-19 10:34:53,746 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) Word has length 170 [2023-12-19 10:34:53,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:34:53,747 INFO L225 Difference]: With dead ends: 288 [2023-12-19 10:34:53,747 INFO L226 Difference]: Without dead ends: 245 [2023-12-19 10:34:53,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=825, Invalid=4577, Unknown=0, NotChecked=0, Total=5402 [2023-12-19 10:34:53,749 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 395 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:34:53,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 363 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 10:34:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-19 10:34:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 144. [2023-12-19 10:34:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 90 states have internal predecessors, (103), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-19 10:34:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2023-12-19 10:34:53,768 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 170 [2023-12-19 10:34:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:34:53,768 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2023-12-19 10:34:53,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-19 10:34:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2023-12-19 10:34:53,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-19 10:34:53,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:34:53,770 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-19 10:34:53,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 10:34:53,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 10:34:53,978 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:34:53,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:34:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash -774169141, now seen corresponding path program 1 times [2023-12-19 10:34:53,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:34:53,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259538709] [2023-12-19 10:34:53,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:53,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:34:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:34:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:34:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:34:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:34:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:34:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:34:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:34:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:34:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 10:34:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 10:34:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 10:34:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 10:34:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 10:34:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 10:34:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 10:34:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 10:34:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 10:34:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 10:34:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 10:34:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-19 10:34:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-19 10:34:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-19 10:34:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-19 10:34:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-19 10:34:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-19 10:34:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-19 10:34:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-19 10:34:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-19 10:34:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-19 10:34:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:34:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259538709] [2023-12-19 10:34:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259538709] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 10:34:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276969894] [2023-12-19 10:34:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:34:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:34:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:34:56,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:34:56,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 10:34:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:34:56,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-19 10:34:56,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-19 10:48:38,334 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 10:48:38,352 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:48:38,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 10:48:38,365 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 10:48:38,561 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,SelfDestructingSolverStorable11 [2023-12-19 10:48:38,561 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 173 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-19-2-2-2-2-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-48-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-2-3-2-3-4-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. [2023-12-19 10:48:38,567 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:48:38,568 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:48:38,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:48:38 BoogieIcfgContainer [2023-12-19 10:48:38,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:48:38,570 INFO L158 Benchmark]: Toolchain (without parser) took 865403.83ms. Allocated memory was 272.6MB in the beginning and 955.3MB in the end (delta: 682.6MB). Free memory was 219.1MB in the beginning and 817.0MB in the end (delta: -597.9MB). Peak memory consumption was 568.7MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,570 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 199.2MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:48:38,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.67ms. Allocated memory is still 272.6MB. Free memory was 218.9MB in the beginning and 206.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.27ms. Allocated memory is still 272.6MB. Free memory was 206.0MB in the beginning and 202.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,571 INFO L158 Benchmark]: Boogie Preprocessor took 63.33ms. Allocated memory is still 272.6MB. Free memory was 202.6MB in the beginning and 196.6MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,571 INFO L158 Benchmark]: RCFGBuilder took 581.78ms. Allocated memory is still 272.6MB. Free memory was 196.5MB in the beginning and 226.8MB in the end (delta: -30.3MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,571 INFO L158 Benchmark]: TraceAbstraction took 864469.04ms. Allocated memory was 272.6MB in the beginning and 955.3MB in the end (delta: 682.6MB). Free memory was 226.3MB in the beginning and 817.0MB in the end (delta: -590.7MB). Peak memory consumption was 575.3MB. Max. memory is 8.0GB. [2023-12-19 10:48:38,572 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 199.2MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.67ms. Allocated memory is still 272.6MB. Free memory was 218.9MB in the beginning and 206.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.27ms. Allocated memory is still 272.6MB. Free memory was 206.0MB in the beginning and 202.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.33ms. Allocated memory is still 272.6MB. Free memory was 202.6MB in the beginning and 196.6MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 581.78ms. Allocated memory is still 272.6MB. Free memory was 196.5MB in the beginning and 226.8MB in the end (delta: -30.3MB). Peak memory consumption was 14.3MB. Max. memory is 8.0GB. * TraceAbstraction took 864469.04ms. Allocated memory was 272.6MB in the beginning and 955.3MB in the end (delta: 682.6MB). Free memory was 226.3MB in the beginning and 817.0MB in the end (delta: -590.7MB). Peak memory consumption was 575.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 173 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-19-2-2-2-2-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-48-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-2-3-2-3-4-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 864.4s, OverallIterations: 12, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1035 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1032 mSDsluCounter, 2181 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1599 mSDsCounter, 547 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2561 IncrementalHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 547 mSolverCounterUnsat, 582 mSDtfsCounter, 2561 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 924 GetRequests, 741 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1853 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=11, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 277 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 27.2s InterpolantComputationTime, 1200 NumberOfCodeBlocks, 1200 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1357 ConstructedInterpolants, 0 QuantifiedInterpolants, 9346 SizeOfPredicates, 4 NumberOfNonLiveVariables, 384 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 8122/8257 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown