/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/systemc/token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 00:44:16,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 00:44:16,845 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 00:44:16,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 00:44:16,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 00:44:16,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 00:44:16,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 00:44:16,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 00:44:16,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 00:44:16,862 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 00:44:16,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 00:44:16,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 00:44:16,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 00:44:16,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 00:44:16,863 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 00:44:16,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 00:44:16,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 00:44:16,864 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 00:44:16,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 00:44:16,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 00:44:16,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 00:44:16,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 00:44:16,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 00:44:16,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 00:44:16,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 00:44:16,866 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 00:44:16,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 00:44:16,866 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 00:44:16,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 00:44:16,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 00:44:16,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 00:44:16,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 00:44:16,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:44:16,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 00:44:16,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 00:44:16,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 00:44:16,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 00:44:16,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 00:44:16,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 00:44:17,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 00:44:17,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 00:44:17,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 00:44:17,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 00:44:17,094 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 00:44:17,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.10.cil-2.c [2023-12-20 00:44:18,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 00:44:18,271 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 00:44:18,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.10.cil-2.c [2023-12-20 00:44:18,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e844a7524/4a69f0101d5045e0ac70eccbf3bc23eb/FLAG9f6920b2d [2023-12-20 00:44:18,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e844a7524/4a69f0101d5045e0ac70eccbf3bc23eb [2023-12-20 00:44:18,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 00:44:18,303 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 00:44:18,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 00:44:18,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 00:44:18,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 00:44:18,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4703ada8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18, skipping insertion in model container [2023-12-20 00:44:18,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 00:44:18,443 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.10.cil-2.c[671,684] [2023-12-20 00:44:18,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:44:18,559 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 00:44:18,567 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.10.cil-2.c[671,684] [2023-12-20 00:44:18,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:44:18,648 INFO L206 MainTranslator]: Completed translation [2023-12-20 00:44:18,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18 WrapperNode [2023-12-20 00:44:18,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 00:44:18,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 00:44:18,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 00:44:18,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 00:44:18,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,686 INFO L138 Inliner]: procedures = 48, calls = 61, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 759 [2023-12-20 00:44:18,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 00:44:18,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 00:44:18,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 00:44:18,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 00:44:18,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,724 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,736 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]. [2023-12-20 00:44:18,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 00:44:18,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 00:44:18,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 00:44:18,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 00:44:18,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (1/1) ... [2023-12-20 00:44:18,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:44:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:44:18,806 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) [2023-12-20 00:44:18,843 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 [2023-12-20 00:44:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 00:44:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 00:44:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 00:44:18,848 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 00:44:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 00:44:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 00:44:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 00:44:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 00:44:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 00:44:18,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 00:44:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 00:44:18,927 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 00:44:18,928 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 00:44:19,384 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 00:44:19,422 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 00:44:19,422 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-20 00:44:19,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:44:19 BoogieIcfgContainer [2023-12-20 00:44:19,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 00:44:19,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 00:44:19,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 00:44:19,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 00:44:19,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 12:44:18" (1/3) ... [2023-12-20 00:44:19,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220f3cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:44:19, skipping insertion in model container [2023-12-20 00:44:19,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:18" (2/3) ... [2023-12-20 00:44:19,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220f3cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:44:19, skipping insertion in model container [2023-12-20 00:44:19,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:44:19" (3/3) ... [2023-12-20 00:44:19,428 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-2.c [2023-12-20 00:44:19,441 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 00:44:19,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 00:44:19,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 00:44:19,483 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;@6b26ac8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 00:44:19,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 00:44:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 270 states have (on average 1.7296296296296296) internal successors, (467), 272 states have internal predecessors, (467), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-20 00:44:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:19,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:19,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:19,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:19,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:19,502 INFO L85 PathProgramCache]: Analyzing trace with hash 149152853, now seen corresponding path program 1 times [2023-12-20 00:44:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:19,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798711909] [2023-12-20 00:44:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:19,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:19,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:19,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798711909] [2023-12-20 00:44:19,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798711909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:19,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:19,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:44:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715039505] [2023-12-20 00:44:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:44:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:19,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:44:19,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:44:19,899 INFO L87 Difference]: Start difference. First operand has 302 states, 270 states have (on average 1.7296296296296296) internal successors, (467), 272 states have internal predecessors, (467), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:21,181 INFO L93 Difference]: Finished difference Result 710 states and 1221 transitions. [2023-12-20 00:44:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:44:21,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:21,192 INFO L225 Difference]: With dead ends: 710 [2023-12-20 00:44:21,193 INFO L226 Difference]: Without dead ends: 410 [2023-12-20 00:44:21,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:44:21,201 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 837 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:21,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 543 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 00:44:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-20 00:44:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 300. [2023-12-20 00:44:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 269 states have (on average 1.6245353159851301) internal successors, (437), 270 states have internal predecessors, (437), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-20 00:44:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 485 transitions. [2023-12-20 00:44:21,251 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 485 transitions. Word has length 140 [2023-12-20 00:44:21,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:21,252 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 485 transitions. [2023-12-20 00:44:21,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 485 transitions. [2023-12-20 00:44:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:21,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:21,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:21,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 00:44:21,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:21,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:21,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1249800749, now seen corresponding path program 1 times [2023-12-20 00:44:21,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:21,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202976005] [2023-12-20 00:44:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:21,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202976005] [2023-12-20 00:44:21,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202976005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:21,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:21,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:44:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708088117] [2023-12-20 00:44:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:21,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:44:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:44:21,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:44:21,443 INFO L87 Difference]: Start difference. First operand 300 states and 485 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:22,546 INFO L93 Difference]: Finished difference Result 698 states and 1146 transitions. [2023-12-20 00:44:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:44:22,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:22,575 INFO L225 Difference]: With dead ends: 698 [2023-12-20 00:44:22,575 INFO L226 Difference]: Without dead ends: 410 [2023-12-20 00:44:22,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:44:22,577 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 826 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:22,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 538 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:44:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-20 00:44:22,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 300. [2023-12-20 00:44:22,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 269 states have (on average 1.620817843866171) internal successors, (436), 270 states have internal predecessors, (436), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-20 00:44:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 484 transitions. [2023-12-20 00:44:22,599 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 484 transitions. Word has length 140 [2023-12-20 00:44:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:22,599 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 484 transitions. [2023-12-20 00:44:22,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 484 transitions. [2023-12-20 00:44:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:22,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:22,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:22,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 00:44:22,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:22,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:22,602 INFO L85 PathProgramCache]: Analyzing trace with hash -815295151, now seen corresponding path program 1 times [2023-12-20 00:44:22,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:22,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305984578] [2023-12-20 00:44:22,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:22,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:22,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:22,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305984578] [2023-12-20 00:44:22,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305984578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:22,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:22,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:44:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352831944] [2023-12-20 00:44:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:22,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:44:22,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:22,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:44:22,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:44:22,787 INFO L87 Difference]: Start difference. First operand 300 states and 484 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:24,672 INFO L93 Difference]: Finished difference Result 1103 states and 1822 transitions. [2023-12-20 00:44:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 00:44:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:24,676 INFO L225 Difference]: With dead ends: 1103 [2023-12-20 00:44:24,676 INFO L226 Difference]: Without dead ends: 819 [2023-12-20 00:44:24,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:44:24,678 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1258 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:24,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 908 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 00:44:24,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2023-12-20 00:44:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 600. [2023-12-20 00:44:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 543 states have (on average 1.6316758747697975) internal successors, (886), 545 states have internal predecessors, (886), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2023-12-20 00:44:24,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 975 transitions. [2023-12-20 00:44:24,707 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 975 transitions. Word has length 140 [2023-12-20 00:44:24,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:24,707 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 975 transitions. [2023-12-20 00:44:24,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:24,708 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 975 transitions. [2023-12-20 00:44:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:24,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:24,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:24,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 00:44:24,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:24,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -416103919, now seen corresponding path program 1 times [2023-12-20 00:44:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:24,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543142537] [2023-12-20 00:44:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:24,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543142537] [2023-12-20 00:44:24,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543142537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:24,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:24,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:24,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617563425] [2023-12-20 00:44:24,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:24,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:24,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:24,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:24,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:24,889 INFO L87 Difference]: Start difference. First operand 600 states and 975 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:27,626 INFO L93 Difference]: Finished difference Result 1828 states and 3020 transitions. [2023-12-20 00:44:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:27,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:27,631 INFO L225 Difference]: With dead ends: 1828 [2023-12-20 00:44:27,631 INFO L226 Difference]: Without dead ends: 1244 [2023-12-20 00:44:27,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:27,634 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1287 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 3176 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 3233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:27,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 1722 Invalid, 3233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3176 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 00:44:27,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2023-12-20 00:44:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 877. [2023-12-20 00:44:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 794 states have (on average 1.6246851385390428) internal successors, (1290), 797 states have internal predecessors, (1290), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2023-12-20 00:44:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1419 transitions. [2023-12-20 00:44:27,666 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1419 transitions. Word has length 140 [2023-12-20 00:44:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:27,666 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1419 transitions. [2023-12-20 00:44:27,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1419 transitions. [2023-12-20 00:44:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:27,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:27,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:27,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 00:44:27,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:27,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 71943187, now seen corresponding path program 1 times [2023-12-20 00:44:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:27,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998500223] [2023-12-20 00:44:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998500223] [2023-12-20 00:44:27,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998500223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:27,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:27,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:27,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135425314] [2023-12-20 00:44:27,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:27,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:27,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:27,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:27,866 INFO L87 Difference]: Start difference. First operand 877 states and 1419 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:30,223 INFO L93 Difference]: Finished difference Result 2890 states and 4764 transitions. [2023-12-20 00:44:30,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:30,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:30,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:30,232 INFO L225 Difference]: With dead ends: 2890 [2023-12-20 00:44:30,232 INFO L226 Difference]: Without dead ends: 2029 [2023-12-20 00:44:30,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:30,238 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1387 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:30,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 1124 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:44:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-12-20 00:44:30,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1432. [2023-12-20 00:44:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1297 states have (on average 1.6183500385505012) internal successors, (2099), 1302 states have internal predecessors, (2099), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-20 00:44:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2312 transitions. [2023-12-20 00:44:30,305 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2312 transitions. Word has length 140 [2023-12-20 00:44:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:30,306 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2312 transitions. [2023-12-20 00:44:30,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2312 transitions. [2023-12-20 00:44:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:30,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:30,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:30,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 00:44:30,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:30,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:30,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1020692015, now seen corresponding path program 1 times [2023-12-20 00:44:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:30,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760077190] [2023-12-20 00:44:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:30,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760077190] [2023-12-20 00:44:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760077190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:30,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:30,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:30,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050201116] [2023-12-20 00:44:30,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:30,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:30,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:30,495 INFO L87 Difference]: Start difference. First operand 1432 states and 2312 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:31,749 INFO L93 Difference]: Finished difference Result 3431 states and 5642 transitions. [2023-12-20 00:44:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:44:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:31,756 INFO L225 Difference]: With dead ends: 3431 [2023-12-20 00:44:31,757 INFO L226 Difference]: Without dead ends: 2015 [2023-12-20 00:44:31,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:44:31,762 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1055 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:31,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 742 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:44:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-12-20 00:44:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1432. [2023-12-20 00:44:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1297 states have (on average 1.6144949884348496) internal successors, (2094), 1302 states have internal predecessors, (2094), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-20 00:44:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2307 transitions. [2023-12-20 00:44:31,816 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2307 transitions. Word has length 140 [2023-12-20 00:44:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:31,817 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2307 transitions. [2023-12-20 00:44:31,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2307 transitions. [2023-12-20 00:44:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:31,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:31,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:31,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 00:44:31,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:31,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1431799567, now seen corresponding path program 1 times [2023-12-20 00:44:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848899744] [2023-12-20 00:44:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:31,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:31,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:31,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848899744] [2023-12-20 00:44:31,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848899744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:31,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:31,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:31,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328022412] [2023-12-20 00:44:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:31,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:31,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:31,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:31,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:31,990 INFO L87 Difference]: Start difference. First operand 1432 states and 2307 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:33,234 INFO L93 Difference]: Finished difference Result 3425 states and 5615 transitions. [2023-12-20 00:44:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:44:33,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:33,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:33,241 INFO L225 Difference]: With dead ends: 3425 [2023-12-20 00:44:33,241 INFO L226 Difference]: Without dead ends: 2009 [2023-12-20 00:44:33,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:44:33,245 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1053 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:33,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 742 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 00:44:33,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2023-12-20 00:44:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1432. [2023-12-20 00:44:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1297 states have (on average 1.610639938319198) internal successors, (2089), 1302 states have internal predecessors, (2089), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2023-12-20 00:44:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2302 transitions. [2023-12-20 00:44:33,292 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2302 transitions. Word has length 140 [2023-12-20 00:44:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:33,292 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2302 transitions. [2023-12-20 00:44:33,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2302 transitions. [2023-12-20 00:44:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:33,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:33,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:33,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 00:44:33,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:33,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash -290203119, now seen corresponding path program 1 times [2023-12-20 00:44:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:33,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110407086] [2023-12-20 00:44:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:33,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:33,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110407086] [2023-12-20 00:44:33,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110407086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:33,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:33,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:33,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990109817] [2023-12-20 00:44:33,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:33,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:33,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:33,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:33,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:33,485 INFO L87 Difference]: Start difference. First operand 1432 states and 2302 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:35,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:35,806 INFO L93 Difference]: Finished difference Result 4910 states and 8013 transitions. [2023-12-20 00:44:35,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:35,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:35,832 INFO L225 Difference]: With dead ends: 4910 [2023-12-20 00:44:35,832 INFO L226 Difference]: Without dead ends: 3494 [2023-12-20 00:44:35,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:35,854 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1271 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 3155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:35,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1720 Invalid, 3155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 00:44:35,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2023-12-20 00:44:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 2558. [2023-12-20 00:44:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2319 states have (on average 1.6045709357481672) internal successors, (3721), 2328 states have internal predecessors, (3721), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2023-12-20 00:44:35,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 4108 transitions. [2023-12-20 00:44:35,986 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 4108 transitions. Word has length 140 [2023-12-20 00:44:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:35,986 INFO L495 AbstractCegarLoop]: Abstraction has 2558 states and 4108 transitions. [2023-12-20 00:44:35,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 4108 transitions. [2023-12-20 00:44:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:35,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:35,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:35,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 00:44:35,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:35,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:35,990 INFO L85 PathProgramCache]: Analyzing trace with hash -622846257, now seen corresponding path program 1 times [2023-12-20 00:44:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:35,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989905648] [2023-12-20 00:44:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:36,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:36,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:36,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989905648] [2023-12-20 00:44:36,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989905648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:36,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:36,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:36,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557022024] [2023-12-20 00:44:36,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:36,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:36,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:36,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:36,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:36,169 INFO L87 Difference]: Start difference. First operand 2558 states and 4108 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:37,484 INFO L93 Difference]: Finished difference Result 6053 states and 9878 transitions. [2023-12-20 00:44:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:44:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:37,494 INFO L225 Difference]: With dead ends: 6053 [2023-12-20 00:44:37,494 INFO L226 Difference]: Without dead ends: 3511 [2023-12-20 00:44:37,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:44:37,499 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 922 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 882 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 00:44:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2023-12-20 00:44:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 2558. [2023-12-20 00:44:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2319 states have (on average 1.6006899525657612) internal successors, (3712), 2328 states have internal predecessors, (3712), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2023-12-20 00:44:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 4099 transitions. [2023-12-20 00:44:37,587 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 4099 transitions. Word has length 140 [2023-12-20 00:44:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:37,587 INFO L495 AbstractCegarLoop]: Abstraction has 2558 states and 4099 transitions. [2023-12-20 00:44:37,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 4099 transitions. [2023-12-20 00:44:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:37,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:37,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:37,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 00:44:37,589 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:37,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1306085969, now seen corresponding path program 1 times [2023-12-20 00:44:37,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149187558] [2023-12-20 00:44:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:37,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:37,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149187558] [2023-12-20 00:44:37,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149187558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:37,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:37,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980711713] [2023-12-20 00:44:37,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:37,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:37,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:37,733 INFO L87 Difference]: Start difference. First operand 2558 states and 4099 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:40,273 INFO L93 Difference]: Finished difference Result 8976 states and 14581 transitions. [2023-12-20 00:44:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:40,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:40,294 INFO L225 Difference]: With dead ends: 8976 [2023-12-20 00:44:40,294 INFO L226 Difference]: Without dead ends: 6434 [2023-12-20 00:44:40,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:40,300 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1263 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:40,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1720 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:44:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2023-12-20 00:44:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 4820. [2023-12-20 00:44:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 4373 states have (on average 1.5952435399039562) internal successors, (6976), 4390 states have internal predecessors, (6976), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2023-12-20 00:44:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 7729 transitions. [2023-12-20 00:44:40,459 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 7729 transitions. Word has length 140 [2023-12-20 00:44:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:40,459 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 7729 transitions. [2023-12-20 00:44:40,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 7729 transitions. [2023-12-20 00:44:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:40,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:40,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:40,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 00:44:40,463 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:40,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:40,463 INFO L85 PathProgramCache]: Analyzing trace with hash -986995057, now seen corresponding path program 1 times [2023-12-20 00:44:40,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:40,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952236356] [2023-12-20 00:44:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:40,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:40,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:40,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952236356] [2023-12-20 00:44:40,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952236356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:40,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:40,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:40,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177281824] [2023-12-20 00:44:40,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:40,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:40,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:40,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:40,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:40,638 INFO L87 Difference]: Start difference. First operand 4820 states and 7729 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:43,474 INFO L93 Difference]: Finished difference Result 17124 states and 27849 transitions. [2023-12-20 00:44:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:43,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:43,525 INFO L225 Difference]: With dead ends: 17124 [2023-12-20 00:44:43,525 INFO L226 Difference]: Without dead ends: 12320 [2023-12-20 00:44:43,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:43,539 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1262 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:43,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 1720 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 00:44:43,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12320 states. [2023-12-20 00:44:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12320 to 9357. [2023-12-20 00:44:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9357 states, 8494 states have (on average 1.5919472568872146) internal successors, (13522), 8527 states have internal predecessors, (13522), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2023-12-20 00:44:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9357 states to 9357 states and 15061 transitions. [2023-12-20 00:44:43,920 INFO L78 Accepts]: Start accepts. Automaton has 9357 states and 15061 transitions. Word has length 140 [2023-12-20 00:44:43,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:43,920 INFO L495 AbstractCegarLoop]: Abstraction has 9357 states and 15061 transitions. [2023-12-20 00:44:43,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9357 states and 15061 transitions. [2023-12-20 00:44:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:43,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:43,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:43,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 00:44:43,926 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:43,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:43,926 INFO L85 PathProgramCache]: Analyzing trace with hash 740149905, now seen corresponding path program 1 times [2023-12-20 00:44:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:43,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359050148] [2023-12-20 00:44:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:44,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:44,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359050148] [2023-12-20 00:44:44,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359050148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:44,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:44,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:44,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775164379] [2023-12-20 00:44:44,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:44,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:44,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:44,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:44,085 INFO L87 Difference]: Start difference. First operand 9357 states and 15061 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:46,783 INFO L93 Difference]: Finished difference Result 33419 states and 54575 transitions. [2023-12-20 00:44:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:44:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:46,839 INFO L225 Difference]: With dead ends: 33419 [2023-12-20 00:44:46,839 INFO L226 Difference]: Without dead ends: 24078 [2023-12-20 00:44:46,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:44:46,862 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1348 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:46,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1124 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 00:44:46,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24078 states. [2023-12-20 00:44:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24078 to 18462. [2023-12-20 00:44:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18462 states, 16767 states have (on average 1.5900280312518638) internal successors, (26660), 16832 states have internal predecessors, (26660), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2023-12-20 00:44:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18462 states to 18462 states and 29933 transitions. [2023-12-20 00:44:47,502 INFO L78 Accepts]: Start accepts. Automaton has 18462 states and 29933 transitions. Word has length 140 [2023-12-20 00:44:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:47,503 INFO L495 AbstractCegarLoop]: Abstraction has 18462 states and 29933 transitions. [2023-12-20 00:44:47,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 18462 states and 29933 transitions. [2023-12-20 00:44:47,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:47,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:47,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:47,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 00:44:47,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:47,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:47,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1211506255, now seen corresponding path program 1 times [2023-12-20 00:44:47,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:47,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293573888] [2023-12-20 00:44:47,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:47,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:47,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293573888] [2023-12-20 00:44:47,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293573888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:47,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401932717] [2023-12-20 00:44:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:47,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:47,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:47,677 INFO L87 Difference]: Start difference. First operand 18462 states and 29933 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:51,521 INFO L93 Difference]: Finished difference Result 73432 states and 120723 transitions. [2023-12-20 00:44:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:44:51,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:51,716 INFO L225 Difference]: With dead ends: 73432 [2023-12-20 00:44:51,716 INFO L226 Difference]: Without dead ends: 54986 [2023-12-20 00:44:51,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:44:51,778 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1344 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 3615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:51,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 1709 Invalid, 3615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3554 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-20 00:44:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54986 states. [2023-12-20 00:44:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54986 to 36352. [2023-12-20 00:44:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36352 states, 33057 states have (on average 1.5907069607042381) internal successors, (52584), 33186 states have internal predecessors, (52584), 2392 states have call successors, (2392), 774 states have call predecessors, (2392), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2023-12-20 00:44:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36352 states to 36352 states and 59683 transitions. [2023-12-20 00:44:53,367 INFO L78 Accepts]: Start accepts. Automaton has 36352 states and 59683 transitions. Word has length 140 [2023-12-20 00:44:53,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:53,369 INFO L495 AbstractCegarLoop]: Abstraction has 36352 states and 59683 transitions. [2023-12-20 00:44:53,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 36352 states and 59683 transitions. [2023-12-20 00:44:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:53,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:53,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:53,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 00:44:53,392 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:53,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash -919844467, now seen corresponding path program 1 times [2023-12-20 00:44:53,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:53,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886502447] [2023-12-20 00:44:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:53,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:53,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:53,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886502447] [2023-12-20 00:44:53,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886502447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:53,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:53,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198539339] [2023-12-20 00:44:53,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:53,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:53,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:53,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:53,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:53,542 INFO L87 Difference]: Start difference. First operand 36352 states and 59683 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:55,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:55,822 INFO L93 Difference]: Finished difference Result 83925 states and 140563 transitions. [2023-12-20 00:44:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:44:55,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:44:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:55,956 INFO L225 Difference]: With dead ends: 83925 [2023-12-20 00:44:55,956 INFO L226 Difference]: Without dead ends: 47589 [2023-12-20 00:44:56,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:44:56,015 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1056 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:56,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 741 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:44:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47589 states. [2023-12-20 00:44:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47589 to 36352. [2023-12-20 00:44:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36352 states, 33057 states have (on average 1.5868046102187132) internal successors, (52455), 33186 states have internal predecessors, (52455), 2392 states have call successors, (2392), 774 states have call predecessors, (2392), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2023-12-20 00:44:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36352 states to 36352 states and 59554 transitions. [2023-12-20 00:44:57,606 INFO L78 Accepts]: Start accepts. Automaton has 36352 states and 59554 transitions. Word has length 140 [2023-12-20 00:44:57,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:57,606 INFO L495 AbstractCegarLoop]: Abstraction has 36352 states and 59554 transitions. [2023-12-20 00:44:57,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:44:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 36352 states and 59554 transitions. [2023-12-20 00:44:57,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:44:57,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:57,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:44:57,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 00:44:57,625 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:57,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1958429041, now seen corresponding path program 1 times [2023-12-20 00:44:57,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:57,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065848006] [2023-12-20 00:44:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:57,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:44:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:44:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:44:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:44:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065848006] [2023-12-20 00:44:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065848006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:44:57,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002620853] [2023-12-20 00:44:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:57,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:44:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:44:57,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:44:57,806 INFO L87 Difference]: Start difference. First operand 36352 states and 59554 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:02,823 INFO L93 Difference]: Finished difference Result 141686 states and 235155 transitions. [2023-12-20 00:45:02,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:45:02,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:45:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:03,611 INFO L225 Difference]: With dead ends: 141686 [2023-12-20 00:45:03,612 INFO L226 Difference]: Without dead ends: 105350 [2023-12-20 00:45:03,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:45:03,691 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1513 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 2952 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:03,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 1713 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2952 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-20 00:45:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105350 states. [2023-12-20 00:45:06,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105350 to 72578. [2023-12-20 00:45:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72578 states, 66147 states have (on average 1.5864513885739338) internal successors, (104939), 66404 states have internal predecessors, (104939), 4632 states have call successors, (4632), 1542 states have call predecessors, (4632), 1798 states have return successors, (11449), 4887 states have call predecessors, (11449), 4632 states have call successors, (11449) [2023-12-20 00:45:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72578 states to 72578 states and 121020 transitions. [2023-12-20 00:45:06,912 INFO L78 Accepts]: Start accepts. Automaton has 72578 states and 121020 transitions. Word has length 140 [2023-12-20 00:45:06,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:06,912 INFO L495 AbstractCegarLoop]: Abstraction has 72578 states and 121020 transitions. [2023-12-20 00:45:06,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:06,912 INFO L276 IsEmpty]: Start isEmpty. Operand 72578 states and 121020 transitions. [2023-12-20 00:45:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:45:06,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:06,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:45:06,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 00:45:06,944 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:06,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 363372877, now seen corresponding path program 1 times [2023-12-20 00:45:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:06,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909398321] [2023-12-20 00:45:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:45:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:45:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:45:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:45:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:07,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:07,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909398321] [2023-12-20 00:45:07,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909398321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:07,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:07,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:07,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254056698] [2023-12-20 00:45:07,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:07,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:07,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:07,339 INFO L87 Difference]: Start difference. First operand 72578 states and 121020 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:14,671 INFO L93 Difference]: Finished difference Result 278902 states and 471275 transitions. [2023-12-20 00:45:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:45:14,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:45:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:15,644 INFO L225 Difference]: With dead ends: 278902 [2023-12-20 00:45:15,644 INFO L226 Difference]: Without dead ends: 206340 [2023-12-20 00:45:15,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:45:15,803 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1309 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:15,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1713 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 00:45:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206340 states. [2023-12-20 00:45:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206340 to 145027. [2023-12-20 00:45:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145027 states, 132452 states have (on average 1.586665358016489) internal successors, (210157), 132965 states have internal predecessors, (210157), 8984 states have call successors, (8984), 3078 states have call predecessors, (8984), 3590 states have return successors, (29179), 9495 states have call predecessors, (29179), 8984 states have call successors, (29179) [2023-12-20 00:45:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145027 states to 145027 states and 248320 transitions. [2023-12-20 00:45:22,766 INFO L78 Accepts]: Start accepts. Automaton has 145027 states and 248320 transitions. Word has length 140 [2023-12-20 00:45:22,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:22,766 INFO L495 AbstractCegarLoop]: Abstraction has 145027 states and 248320 transitions. [2023-12-20 00:45:22,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 145027 states and 248320 transitions. [2023-12-20 00:45:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:45:22,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:22,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:45:22,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 00:45:22,821 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:22,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1778487601, now seen corresponding path program 1 times [2023-12-20 00:45:22,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:22,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585984638] [2023-12-20 00:45:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:22,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:45:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:45:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:45:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:45:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:22,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:22,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585984638] [2023-12-20 00:45:22,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585984638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:22,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:22,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:22,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943497458] [2023-12-20 00:45:22,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:22,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:22,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:22,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:22,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:22,946 INFO L87 Difference]: Start difference. First operand 145027 states and 248320 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:29,269 INFO L93 Difference]: Finished difference Result 331349 states and 584664 transitions. [2023-12-20 00:45:29,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:45:29,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:45:29,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:30,135 INFO L225 Difference]: With dead ends: 331349 [2023-12-20 00:45:30,135 INFO L226 Difference]: Without dead ends: 186338 [2023-12-20 00:45:30,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:45:30,571 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 926 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:30,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 881 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 00:45:30,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186338 states. [2023-12-20 00:45:36,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186338 to 145027. [2023-12-20 00:45:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145027 states, 132452 states have (on average 1.582792256817564) internal successors, (209644), 132965 states have internal predecessors, (209644), 8984 states have call successors, (8984), 3078 states have call predecessors, (8984), 3590 states have return successors, (29179), 9495 states have call predecessors, (29179), 8984 states have call successors, (29179) [2023-12-20 00:45:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145027 states to 145027 states and 247807 transitions. [2023-12-20 00:45:37,441 INFO L78 Accepts]: Start accepts. Automaton has 145027 states and 247807 transitions. Word has length 140 [2023-12-20 00:45:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:37,441 INFO L495 AbstractCegarLoop]: Abstraction has 145027 states and 247807 transitions. [2023-12-20 00:45:37,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 145027 states and 247807 transitions. [2023-12-20 00:45:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 00:45:37,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:37,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:45:37,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 00:45:37,507 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:37,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1893198093, now seen corresponding path program 1 times [2023-12-20 00:45:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:37,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519874453] [2023-12-20 00:45:37,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:37,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:45:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:45:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 00:45:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 00:45:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:37,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519874453] [2023-12-20 00:45:37,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519874453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:37,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:37,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:37,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483599485] [2023-12-20 00:45:37,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:37,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:37,657 INFO L87 Difference]: Start difference. First operand 145027 states and 247807 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 00:45:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:49,805 INFO L93 Difference]: Finished difference Result 542835 states and 941545 transitions. [2023-12-20 00:45:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:45:49,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2023-12-20 00:45:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:52,064 INFO L225 Difference]: With dead ends: 542835 [2023-12-20 00:45:52,064 INFO L226 Difference]: Without dead ends: 397824 [2023-12-20 00:45:52,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:45:52,598 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1283 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 3236 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:52,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1713 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3236 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 00:45:52,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397824 states.